Tools/Maintenance

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-1 FEATURES - 4mm, 5mm, and 6mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

The Masterlink Pliers is a multi-tool developed to provide functions that are not on a typical multi-tool. It is designed to be light and compact so you can carry it with you. This tool serves as a tire lever, valve core remover, valve stem lock nut wrench, and master link pliers. It also provides storage for two master links so you will always be prepared on the trail. Magnets hold the master links securely in place and self close the tool. - Weight: 38.5g - Size: 116 mm x 20 mm x 9 mm - Material: 7075-T6 aluminum - 9, 10, 11, and 12-speed master links and chains - Compatible with SRAM PowerLock Link, Shimano Quick-Link, KMC Missing Link and other similar master links

To prevent poor shifting and uneven drivetrain wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with Park's Chain Checker. Simply insert the Chain Checker’s pins into 2 links, press the swingarm gauge tight, and then check the gauge window for an accurate reading!

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

- The crank puller is designed to remove standard square spindle cranks. With help of the included adaptor other standards such as ISIS and Octalink cranks can also be removed.

Park's BBT-18 is a heavy duty, investment cast tool for installing and removing all Shimano, ISIS Drive, and ISIS Overdrive 8-notch bottom bracket cups.

SRAM's Butter Grease is a Slickoleum lube recommended for fork bushings, Roam and Rise wheel rear hub pawls and Reverb seat post service. Keep your parts working smoothly!

- Incredibly effective cleaning formula containing Nano Technology that also cares for your bike's delicate finishes - Contains no harmful acids, CFC's or solvents and is fully biodegradable - Cuts through dirt, oil and grime quickly and safely leaving your whole bike sparkling clean

Zipp Speed Weaponry Valve Extender Wrench Set - Two 4 mm and 5 mm combination wrenches - Replacement wrenches required to properly install Zipp integrated valve extenders - Use with Zipp Tangente tubes with aluminum Presta valve and aluminum valve extender

The Deluxe Wall-Mount Repair Stand easily mounts to any post or wall stud. This shop-quality stand places the bike approximately 14.5 inches from the wall, so you'll have plenty of work space. The awesome clamp is Park's Professional Micro-Adjust model, which features replaceable rubber jaws; fits seatposts and frame tubes from 7/8 to 3-inch diameter; includes recesses for cable housing and rotates 360 degrees for optimum bike positioning. This great stand lets you work on your bikes just like a pro and is built to last.

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings. The Chain Gang includes: - CM-5.3 Cyclone Chain Scrubber - GSC-1 GearClean Brush - 8 oz. bottle of Bio ChainBrite The CG-2.4 works on nearly any bike, including multi-speed, single-speed, and e-bikes.

- Same award-winning Nano-Tech cleaner in a concentrated form - One 500ml Pouch will make 2x 1L nano-tech cleaner bottle - Can be used as a powerful degreaser in its concentrated form - Works really well in a chain cleaning device like Muc-Off X-1 - Safe on all bike parts or all bike frame materials

- Includes everything for a quick fix while on or off-road - Giant seat bag - 12 glueless patches - 2 tire levers - Mini pump - 9 function multi-tool

- PLUSH Suspension Oil - Formulated specifically for mountain bike suspensions - Designed for use in both forks and shocks - Reduces stiction and running friction - Consistent damping performance at any temperature - Proprietary additive system minimizes oxidation, corrosion and wear - Designed to protect seals and extend time between rebuilds

- Featuring all five Muc-Off brushes in a handy storage bag - Claw brush ideal for chain, cassette and sprocket - Detailing brush ideal for tight areas such as suspension mounts or fork crowns - Soft washing brush ideal for your bike frame and wheels - Wheel and component brush ideal to clean rim and spokes with ease - Two-prong brush ideal to reach hard-to-shift dirt on your components

Park's Chainring Nut Wrench makes chainring bolt installation and removal easy. It securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. And, it's double-ended to fit most slotted-type nuts, including Campagnolo chainring bolt nuts.

• Updated to be stronger, smoother, and more versatile • Features a new material and redesigned tip for easier entry into just about any tire, including tubeless • The unique design lifts the tire away from the rim and features a spoke hook to use when multiple levers are needed • This set includes 3 tire levers

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

Park Tool's Deluxe Home Mechanic Repair Stand is a heavy-duty folding stand with your choice of shop quality clamps. Perfect for heavier duty home use or portable shop use, the PCS-4 features a rock-solid, four-point leg system that folds together for storage, steel powder-coated tubing, and a composite horizontal tube. • PCS-4-1 uses the 100-5C Adjustable Linkage Clamp. • Clamp rotates 360º and is adjustable in height up to 67” (170cm) • Adjusts quickly from 55" to 72" • Approximate weight 26 lbs (11.8 kg) NOTE: The maximum weight holding capacity of the PCS-4 is 45 kg (100 lb.). However, this assumes the weight is centered over the legs.

The ultimate trailside companion. These high tensile steel multi-tools feature a precise fit and finish and side grips for a secure handhold even with gloves on. The m17 includes: Chain tool: 8/9/10 speed compatible Spoke wrench: #0, 1, 2, 3 Hex wrenches: #2, 2.5, 3, 4, 5, 6, 8 Open wrench: 8mm, 10mm Screwdrivers: Phillips #2, flat #2 Torx: t-25 Length: 89 mm Weight: 168g Warranty: Lifetime

The new 8-Bit System is a group of multi-tools designed to work together to solve most trailside fixes. They are lightweight, strong, versatile, and small enough to fit in a jersey pocket or riding tool wrap. Three multi-tools begin the 8-Bit System: 8-Bit Chainbreaker + Utility Knife Multi-Tool, 8-Bit Tire Lever + Rim Dent Remover Multi-Tool, and 8-Bit Pack Pliers. A total of 22 functions between the three tools will keep you rolling to the next town or trailhead. - 17 functions: spoke wrench; valve core wrench; flat head #3.5 and Phillips #2 screwdriver bits; 2, 2.5, 3, 4, 5, 6, and 8mm hex; and T10, T25 Torx-compatible bits; install and remove master links; clear tire sealant clogs from valve stem; tighten valve stem lock nut - Magnets keep all bits in place - Ball detent swivel head helps access hard-to-reach places - Handle doubles as breaker bar for extra torque when head is bent - 8mm hex bit tested to over 40 Nm torque - Pliers works with 9-, 10-, 11- and 12-speed master links and chains (not compatible with Campagnolo 12-speed chains) - Master Link storage is compatible with SRAM PowerLock Link, Shimano Quick-Link, KMC Missing Link and other similar master links (not compatible with Connex Links by Wipperman)

Park's Gear Clean Brush has a handle on one end with a curved, serrated edge perfect for cleaning between cassette cogs. The other end's tough nylon bristles are ideal for cleaning the derailleurs, chain and other drivetrain parts to keep them clean and prevent premature wear. It also works great on brakes and other components that collect dirt and grime. The GearClean easily fits in a toolbox or pack.

Many chains use a master link that allows the chain to be installed and removed by hand. While master links don't require traditional chain tools, over time, dirt and corrosion can make it difficult to separate them by hand. Park's Master Link Pliers make removing and installing these master links quick and easy. Simply insert the specially sized jaws into the link and squeeze the vinyl-coated handles!

- Hex wrenches 2, 2.5, 3, 4, 5, 6, 8 - TX wrenches 10, 25 - PH1 screwdriver - Chain tool - Schrader & Presta valve tool - Flat screwdriver 1.0 x 5.0 - Spoke Key 3.3, 3.45 and DT

Park's Heavy-Duty Tire Levers handle the toughest tire-and-rim combinations including difficult downhill and freestyle tires. Their specially designed tips engage the tire bead so it can be removed with just two levers. Plus, these beefy, forged-steel levers are a full 8-inches long for superior leverage.

FRESH out the bowels of Muc-Off Research and Development comes the NEW Bio Grease! Designed specifically for bicycle use, Muc-Off Bio Grease possesses a unique formula that prevents corrosion and water ingress so your bike’s components will last long into the future! Use Muc-Off Bio Grease to increase your performance, and ensure every ride will be smoother than your last. Muc-Off *Biodegradable Bicycle Grease is specifically blended for the unique ‘low speed’ applications found on bicycle parts where reducing friction is paramount. This premium formulation is based on renewable resources, and has a combination of extreme pressure lubricity additives and natural ‘slip’ giving it unrivaled performance in its class! Bio Grease also has the added benefit of being readily biodegradable and extremely resistant to water wash off, which helps prevent corrosion, reduce friction and improve the performance of moving parts. The guys at Muc-Off are dedicated to making eco friendly products that won’t harm you, your bike or the planet and Bio Grease is no exception. This new grease is fully biodegradable and free from any nasty petroleum based oils! NOT for use on Bicycle chains *Only contents are biodegradable. - Prevents corrosion and water ingress so your bike’s components will last longer - Specially formulated for "low speed" applications unique to bicycle parts, where reducing friction is paramount - Extremely resistant to water wash-off, which helps prevent corrosion, reduce friction and improve the performance of moving parts - Fully biodegradable and free from petroleum-based oils

Park's Valve Core Tool is great for tightening, removing and installing Schrader and Presta valve cores (the cores are inside the valve), and also Presta valve extenders that have 5mm wrench flats. It's a handy tool to save a tube when all that's wrong is a broken valve, and it also lets you remove valves to easily insert sealant.

"A full-featured bicycle workstand designed and built for the home mechanic. The PCS-10.3 includes Park Tool's tried and true cam-actuated micro-adjustable clamp design for quick one-handed entry and exit, as well as a quick-release height adjustment lever for easy, secure adjustment. Features 18"" (460 mm) of height adjustment and 360 degrees of clamp rotation, positioning all parts of the bike within reach for any mechanic whether seated or standing. The stand's all-steel construction with teardrop-shaped tubing ensures maximum rigidity and stability, with tubular support braces, a locking support yoke, and upgraded internals for extra dependability. The PCS-10.3 is able to hold up to 80 lbs. (36 kg), which allows for compatibility with virtually all two-wheeled pedal-driven bicycles, including fat bikes and most e-bikes. The PCS-10.3 features an integrated height-adjustable parts tray, as well as accessory ports for the Park Tool #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately), so your tools and small parts are always within reach. Quickly folds down for storage and transport with a smooth-operating leg support system that pulls both legs up in one simple motion. The PCS-10.3 is the perfect way to upgrade your home shop—a stable way to hold nearly any bike off the ground for adjustments, cleaning and repair. NOTE: The maximum weight capacity of the PCS-10.3 assumes the weight is centered below the clamp and between the legs.? - Cam-actuated micro-adjustable clamp fits 7/8"" to 3"" (22 mm–76 mm) diameter tubes and seat posts of any shape and material, including aero posts and dropper posts - Narrow clamping jaws (2.7""/70 mm) fit into tight areas or on short seat posts - Rubber saddle pad allows bikes to be hung by the saddle for quick adjustment or storage - Durable, textured powder coat finish - Integrated height-adjustable parts tray - Height adjustment collar features accessory ports for compatibility with the #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately) - Maximum weight capacity*: 80 lbs. (36 kg) - Height adjustable from 39"" to 57"" (990 mm–1450 mm) using convenient quick-release lever - Base when open forms a triangle of 36"" x 36"" x 48"" (920 mm x 920 mm x 1210 mm) - Folds down to 45"" x 14.5"" (1140 mm x 370 mm) - Weight: 16 lbs. (7.2 kg)"

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

- Includes everything for a quick fix while on or off-road - Giant seat bag - 12 glueless patches - 2 tire levers - Mini pump - 9 function multi-tool

- Highly versatile dry weather chain lubricant - Deep penetrating, durable P.T.F.E. chain lubricant - Hold up to extreme conditions which can destroy ordinary lubes - Comfort bottle with pipette system for ease of use and application

Park's I-Beam Mini Fold-Up Hex Wrench/Screwdriver/Torx Set with Chain Tool includes 1.5, 2, 2.5, 3, 4, 5, and 6mm Allen wrenches, a socket 8mm Allen, a regular screwdriver, a T25 Torx tool (for disc-rotor bolts), a tire lever, spoke wrenches and a chain tool. The I-Beam conveniently fits in pockets and packs, too.

A puncture in your tubeless tire doesn't have to be a death sentence for your ride. This handy carry-along tool repairs small punctures and cuts in tubeless bicycle tires without removing the tire from the rim, getting you back on the trail in no time. The TPT-1 easily plugs the hole by inserting one of the 5 included vulcanized rubber plugs into the puncture. This shrinks the puncture down to a manageable size, allowing the tubeless sealant to do its job and reestablish a seal. The unique sliding plug retainer holds the plug in place and prevents it from being pulled back out as the tool is removed. Everything is stored in a compact package that fits easily in a saddlebag or backpack pocket. - Includes 5 vulcanized rubber plugs (refills available — part #2370K) - Dimensions: 89 x 27 x 40 mm (3.5" x 1.1" x 1.6") - Weight: 79 grams (2.8 oz.) with plugs NOTE: Intended for tubeless bicycle tires using sealant only. Not compatible with inner tube systems.

Stan's 2oz Tire Sealant Injector measures the desired amount of sealant then attaches to your valve stem for easy, no-mess application. And, it works on Presta and Schrader valves!

For use in conjunction with our reaming pedal taps, this thread insert is held in place with a strong thread locker and allows you to install any standard pedal. - Pack of 10, fits 9/16" pedals.

- Pre-calibrated torsion ratchet tool - Constructed with machined aluminum - Removable handle for easy storage in molded EVA case - Includes: 2.5, 3, 4, 5mm hex bits and T20, T25 Torx bits

Stans No Tubes, Sealant, Tubeless Sealant, 250m Quick sealing and stop punctures up to 1/4 inch Can be used year around

Zipp's Bearing Grease is perfect for your home workshop and traveling toolbox, too. It's a quality lubricant designed to minimize friction and maximize the life of your components. And it's easy to apply with its 20ml syringe container.

The DT-5.2 is engineered and built to accurately face front or rear disc brake mounts so they are precisely aligned to the rotor. - Faces any IS Mount, Post Mount, or new Shimano Flat Mount, including low clearance, chainstay mounts - Telescoping axle adaptors allow use with any configuration of open or thru-axle dropouts and dropout widths (including Boost 110, Boost 148 and all fat bike axles) - Includes two facing cutters: IS Mounts Post and Flat Mounts - Includes storage case

Three of our most-loved clean, protect and lube products that’ll make light work of grime and keep your bike running smooth. An epic kit that makes for the perfect gift for that bike fanatic in your life. Nano Tech Bike Cleaner - Safe on all parts and surfaces including carbon fibre - Will not harm seals, cables, brake pads or rotors - Safe on anodised metal - Alkaline based and free from CFCs, solvents or acids - Nano Tech Formula cleans on a molecular level MO-94 - Frees seized parts - Disperses moisture to prevent rust and corrosion - Provides light lubrication for moving parts - Reduces metal to metal contact - Prevents dirt adhesion - Cuts down on friction to improve component efficiency Dry Weather Lube - Ensures silky smooth gear shifts - Reduces friction and energy consumption - Repels water for chain and component protection - Excels in dry, dusty riding conditions - Extreme pressure additives for increased efficiency - Vegetable oil based formula for eco protection - Biodegradable - Pipette system for easy application - Can be applied to chain, shifters, cables and derailleurs - Ideal for MTB, Road and Cyclocross

Strong and nearly indestructible, this heavy-duty tool provides much more leverage than the weaker, more brittle tire lever. Designed to pull the tire over the rim's bead, it never protrudes into the tire thus avoiding inner tube damage that commonly occurs with tire levers. And the nylon material prevents undesired scratches from occurring to the rims attached to your beautiful wheels. This tool can be used for tires up to 46mm. Made of lightweight, durable, injection molded, fiber reinforced thermoplastic.

- Creates a ceramic coating for incredible durability and long distance performance - Provides ultra low friction for ultimate drivetrain efficiency - Waterproof qualities excelling in wet conditions - 95% biodegradable

The BBT-22 is a shop-quality tool for installing and removing Shimano and ISIS Drive splined 20-tooth bottom bracket cups. Made from investment-cast steel, the BBT-22 ensures maximum engagement with the bottom bracket cup. It can be used with a 3/8-inch drive torque wrench, a 3/8-inch ratchet driver, a 32mm wrench, the Park FRW-1 Freewheel Remover Wrench (sold separately), or a 1-inch wrench.

The new Wolf Tooth 6-Bit Hex Wrench is a slim, strong multi-tool with 11 functions for common bike repairs and everyday needs. Six hex bits are stored inside the handles that fit into the end of a ball detent swivel head for use. It is small enough to fit into a riding tool wrap or pocket, and has an optional key ring attachment to fit on any keychain for use away from the bike. - Six bits with eleven functions: 2, 2.5, 3, 4, 5, 6, and 8mm hex; flat head #3.5 and Phillips #2 screwdrivers; and T10 and T25 Torx-compatible bits - All bits are ED-coated and corrosion-resistant - Magnets keep all bits in place and secure - Ball detent swivel head tested to over 40Nm of torque - Same bits as 8-Bit System and EnCase System multi-tools - Replacement parts available

RockShox Bleed Kits for servicing various RockShox suspension components. - Fits basic RockShox bleed kit, 3mm ID - Necessary to bleed the Charger damper in the RockShox Pike fork - For the perfect bleed use in conjunction with the RockShox Speed Lube kit part # RS-3012

- Blade chrome plated, black anodised tip - Handle – polypropylene

- 15 mm opening is laser cut with precision and perfect angle to help you loosen the pedals as easy as possible - 270mm of length for extra leverage - Small and light weight, perfect for toolbox and traveling

- Ratchet operates in clockwise and anti-clockwise directions - For tightening on right hand threaded bolts and nuts - Signal when set torque is reached - Default value for the recalibration interval is 12 months of use, or approximately 5000 cycles - Dual scaled, Nm and Kgm

Park's Torx Wrench Set is just what you need to make repairs on many of your bike parts that use Torx (star-shaped) fittings, such as disc brakes, pedals, chainring bolts, and others. It offers the common bicycle wrench sizes (T7, T9, T10, T15, T20, T25, T27, T30 and T40) in a convenient fold-up set. Its composite handle is super strong, comfortable to use and slip resistant.

- Incredible durability - New and improved anti-wear additives to improve component life. - Contains synthetic polymers for long distance-performance - Provides the ultimate performance in both wet & damp or dry & dusty conditions - Petroleum-free formula for eco protection - Ideal for road cycling and cyclocross

- Film forming lubricant designed to protect moving components and wear surfaces during assembly and initial break-in - Shields metal-To-metal contact and offers excellent rust and corrosion protection during long service periods and storage - Formulated with high levels of anti-Wear and extreme pressure additives and surface active chemistry to reduce friction. Two times zinc activates at both high and low operating temps providing unsurpassed protection. Non-Foaming

- Multi-function chain wear checker and chain holder. - Constructed from precision machined stainless steel. - Integrated valve core tool and bottle opener. - Included steel ring for hanging storage. - Works with 5 to 12-speed chains.

Maxima Plush Dynamic Suspension lube is an advanced specialty fluid formulated for high-performance suspension systems. Formulated and tested with OEM engineers and designed for use in lower fork legs and multiple other non-damper components. Surface active technology reduces static and dynamic friction and considerably lowers the force needed for easy breakaway, providing smooth action throughout the entire range of travel. - High performance lube for all lower fork legs and other non-damper suspension components, including all Mountain, XC, Gravel, Downhill, Enduro, and Freeride (Also approved for use in some dropper post seat designs) - Dynamic lube activates on loaded bushings and seals - Reduces static (stiction) and dynamic (running) friction - Proprietary additive system minimizes wear and keeps the system clean - Long life fluid extends time between rebuilds - Dynamic Light is a direct replacement for 0w30 in all forks specifying the use of Rockshox 0w30

The Pack Hanger Alignment Tool allows quick adjustments to be made to the derailleur hanger while on the trail or in the workshop. Alignment fixes are quick and intuitive, as you only need to adjust the hanger handle until it is parallel with the indicator rod. By using the bike's axle for reference, you don't need to be concerned with the wheel for making adjustments to the hanger. And for simple and durable storage, the components of this tool also nest inside of the handle. - Quick, easy deployment at the trailhead or workshop with all components ready to go inside the handle. - Tightening knob employs a clever rock-to-lock thread engagement that saves time while installing and removing. - Alignment is made by a simple, intuitive process of lining up the handle to the indicator rod. No turning the wheel or dodging spokes required. - Works on 12mm thru axle bikes

-Mminimalist, lightweight option to cover essential tool functions. It is stored at the end of an axle during rides as a multi-tool that is easy to access for quick adjustments and trailside fixes - On one side of the handle is a 5mm hex end stepped to 6mm closer to the handle that fits into the end of an axle. The other side of the handle has a 4mm opening for two double-sided hex bits that nest on the inside of the handle via magnet - Compatible with Wolf Tooth axles that have threaded axle bolt - Includes: Four bits: 2, 2.5, 3, and 4mm hex; flat head #3.5 and Phillips #2 screwdrivers; and T10 and T25 Torx-compatible, hex adapter

- Everything you need for a quick fix on the road - 3 tire levers - Patch Kit - 9-function multi-tool - CO2 inflator with 2 16g CO2 cartridges - Seat bag

- Chrome-plated chain tool. - Compatible w/ HG, IG, and UG chains. - Extra-long knurled handle for good leverage. - Adjustable backing support braces the backplate of the chain. - Replaceable driver pin.

These quick-link pliers make fast work of pesky or stubborn chain master links. The laser-cut, heat-treated jaws feature a dual-function design, allowing both installation and removal of master links. Cushioned grips provide comfort and control. -Laser-cut, heat-treated, dual-side jaws both install and remove master links -Cushioned grips provide comfort and control

Everyone wears out their Park Tool work stand clamp covers at some point. Find replacement covers for yours here. Each cover is constructed of soft, durable composite rubber. See below to determine which covers fit your Park Tool stand clamp: - 1002: fits 100-3X and 100-5X extreme range clamps - 1185: fits clamps on the repair stands PCS-9, PCS-10, PCS-11, and PCS-12 - 1259: fits 100-4X, 100-6X, 100-7X, and 100-15X clamps - 1960: fits 100-3D, 100-5D, and 100-25D Professional Micro Adjust Repair Stand Clamps - 468B: fits clamps with double cable reliefs, including 100-3C, 100-5C, 100-8C, 100-8Y, and 100-9C clamps - 467B: fits clamps with single cable relief, including PRS-2 through PRS-8 (for older-style clamps, non-current) - 468G: fits PCS-1 and PCS-2 clamps with double cable reliefs (clamp models: 100-1C, 100-1CA, and 100-2C) - 467G: fits PCS-1 and PCS-2 clamps with single cable relief (for older PCS-series stands only; not for current model stands) - 466: Rubber Replacement Clamp Cover Set (fits older clamps with plastic-dipped jaws)

Use this double-sided socket tool for installing and removing both 48.5mm and 44mm 16-notch bottom bracket cups. Socket is machined for 1/2-inch drive, but a 3/8-inch to 1/2-inch adapter is included so you can use it with 3/8-inch drive torque wrenches. - Compatible with all Wheels Manufacturing bottom brackets that have 48.5mm or 44mm, 16-notch spline patterns - Also compatible with FSA MegaEVO BB cups, Shimano, SRAM/Truvativ, Campagnolo Ultra Torque, and FSA - Machined 6061 aluminum - Anodized red