Parts

- Tiagra-level Hollowtech II bottom bracket - Compatible with all road Hollowtech II cranks

- Simple and reliable square taper bottom bracket - Replaces both BB-UN26 and BB-UN55 - Sealed cartridge bearings - Cr-Mo axle - For bicycles equipped with a chain case, select BB-UN300-K - For E-type front derailleur compatibility, choose BB-UN300-E - Fixing bolts not included; Shimano FC-E6000 bolts suggested

SRAM's GX 2x10 rear derailleur provides incredible shifting speed and precision. Exact Actuation technology eliminates slop and shifting variation. Roller Bearing Clutch technology delivers maximum drivetrain stability—even through the most punishing terrain. And with Cage Lock technology, wheel removal and installation are easier than ever.

Sleek, balanced and consistent. Shimano's Tiagra 4700 series brakes provides serious entry-level riding performance with trickle-down technology from Dura Ace. - Model Number: BR-4700 - Series: Tiagra - Brake Type: Super SLR Dual Pivot - Cartridge Shoe Holder: R50T5 / R50T4

DebonAir air spring assembly to update Yari and Lyrik forks.

Designed for use with the Zipp SL Speed Seatpost; an internal mount to hold a Shimano DI2 seatpost battery. - Mount compatible only with B1 SL Speed seatpost - Weight: 18g for 27.2mm, 19g for 31.6mm

The Problem Solvers Standard Top Cap is a light, durable aluminum top cap for threadless headsets. These caps fit all forks.

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. - Made from Aluminum, anodized or polished finish, without logos - 1-1/8" Diameter - S.H.I.S. Stem Clamp Diameter: 28.6mm

Shimano's BR-R451 Road Brake Calipers feature a sleek, minimalist design while providing excellent stopping power when you need it. - Compatible with STI and brake levers that are Super SLR enabled (Dura Ace Di2 7970, Dura Ace 7900, Ultegra Di2 6770, Ultegra 6700, 105 5700, Tiagra 4600) - Light action and accurate brake power - Adjustable toe-in brake shoes - Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response - Brake Lever Actuation: Short Pull Super SLR - Brake Mount Type: Mid Reach Caliper (47mm - 57mm) - Brake Position: Front - Defined Color: Black - Pad Type: Cartridge

The proven Transfer seatpost gets lighter and tighter. Completely redesigned from the ground up, with improved serviceability, decreased weight, reduced length, and decreased insertion depth. Performance Elite Transfer Posts retain the same internals, diameter options, drop options, shortened stack heights, new patent-pending head design and proven internals as the Factory Series but have a black anodized upper. - Cable actuated with tool-free quick disconnect for easier installation and removal - Low lever force provides consistent actuation pressure even with saddle weighted or unweighted - Easy to modulate return speed with lever - Remote lever sold separately - 0mm offset

The Shimano EF500 8-Speed dual brake/shift lever features reach adjust technology and an optical gear display. - Equipped with a reach adjust mechanism that allows for the distance from handlebar to lever to be adjusted in order to suit any hand size and riding preference - The optical gear display tells you which gear position is selected while riding - Compatible with V-Brake, Mechanical disc brake (MTB)

The EDC Cap Kit includes the worlds lightest headset top cap (4.2g), and an EDC steerer plug with drain hole which keeps crud out of your steerer. Top caps are compatible with all 1-1/8" aluminum steerer tubes. The EDC steerer plug is required for EDC tool storage and is compatible with most aluminum tapered steerer tubes. KIT INCLUDES - EDC TOP CAP - EDC steerer plug - 2x 1mm, 3mm, & 5mm Headset Spacers

Service your suspension fork with Enduro Seal KIts. - Custom made for each make and model of fork

- Replacement Rotor Bolt kits for Formula rotors - 6/pack

- Extra-long molded pads for MTB linear brakes - Black: standard compound designed for dry condition riding - Salmon: aggressive compound for extreme weather conditions - Dual: combination of Salmon and Black compounds for more controlled, smoother stopping

Wheels Manufacturing hangers are stiffer than almost any OEM hanger, which improves durability and shifting performance. - OEM hangers are only produced by a handful of manufacturers, mostly in Taiwan and China. As a result, you will see many bikes with exactly the same hanger. Bicycle manufacturers may make mid year changes. Please use the hanger photos to select the proper hanger for your application. - These hangers DO NOT INCLUDE attachment hardware with the exception of QBP # FS1561 (DROPOUT 399) - CNC machined 6061 aluminum - Made in the USA

The AXS battery cover is a light-weight cowling designed to protect the battery while installed on the derailleur. The AXS Battery Cover fits all AXS mountain bike derailleurs.

Wireless shifting and the best hydraulic disc braking anywhere, plus revolutionary eTap shift logic. What more could you want? While we could have stopped there, we went further and optimized the hood shape to fit hands of all sizes for comfortable and controlled braking from any position. AXS technology means personalization is in your hands. - AXS-enabled for easy personalization - Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability - Optimized hood shape fits a wider range of hand sizes - Textured shift paddles and hoods for control and comfort - Reach Adjust to personalize fit for more hand sizes

Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.

Shimano's Deore-level 10-speed Chain offers excellent power transfer and top-notch durability. It showcases a mud-shedding design and Shimano's directional design with engineered inner and outer plates for smooth, fast and precise shifting.

Avid, Post Bracket, Includes Stainless Caliper Mounting Bolts (CPS and Standard)

MSW 17° stems raise the bar—literally—for what riders can expect from an inexpensive stem. Rigorously tested to ISO-4210 Mountain qualification standards. - Tested to ISO 4210 Mountain standards - 3D-forged for increased strength, then CNC-machined - 4-bolt faceplate for easy installation

SRAM's 3.0 Twist Shifters are simple to use and offer solid shifting and reliable construction. Using SRAM's 1:1 actuation ratio technology, the 3.0s are easy to set up and easy to adjust. Plus, with a simple twist of the wrist, you can shift a handful of gears at once.

Aluminum headset stack spacers precision cut to ensure proper headset function. - Precision cut for proper function

Switching frames doesn’t mean you have to switch posts! Use your old posts without worry with Problem Solver's wide variety of seatpost shims. -100mm long -3mm lip -Alloy Problem Solvers Seatpost Shims are not intended for use with carbon seatposts

Rock-solid in the park or on the trail, the Spank Spoon 800 handlebar gets a refresh for 2020. With new, fresh graphics, the Spoon bar is now 800mm wide for ultimate control. In addition, you can dial in your fit with the ability to cut it down to 740mm for a wide variety of uses. Spank Spoon: the best-priced handlebar on the market without compromise! - Cost-effective upgrade to your 31.8mm cockpit without sacrificing quality - Freeride inspired all-mountain geometry makes the bar extremely versatile - Shot-peening and anodizing enhances fatigue life - Dial your fit—adjustable to 740mm - Recommended for: ASTM 5, All mountain, trail, free ride, DH, E-Bike

You've got to have the right ratio for the track, and Shimano's Dura-Ace cogs come in a range of tooth counts so you can always be prepared. Manufactured from durable chromoly steel, each cog is machined to run perfectly straight.

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.

- Shimano 105 R7000 Series CS-R7000 11-speed cassette - Average weight: 284 g (11-28T), 304 g (11-30T), 320 g (11-32T), 269 g (12-25T) Combinations: - 11 – 28T: 11-12-13-14-15-17-19-21-23-25-28T - 11 – 30T: 11-12-13-14-15-17-19-21-24-27-30T - 11 – 32T: 11-12-13-14-16-18-20-22-25-28-32T - 12 – 25T: 12-13-14-15-16-17-18-19-21-23-25T

• Steel construction on all but the largest aluminum gear • Nickel-plated finish for corrosion and wear resistance • Dyna-sys 11-speed cassette with "Rhythm step" gearing for closer gear ratios and smoother shifting performance • Fits Dyna-sys 11-speed and current Shimano 9/10-Speed MTB hubs • The largest cog (40t) is positioned inboard and above the drive-side flange • Hubs with tall drive-side flanges may not be compatible due to spoke interference