
E-Bike Sprocket FSA Bosch Gen2 Black
FSA Bosch Gen2 e-bike sprocket with 2.5 mm offset, heat-treated stainless steel construction and compatibility with Standard and Boost 148 systems.


FSA, or Full Speed Ahead, is an internationally recognized manufacturer of bicycle components. Its range includes wheels, cranksets, bottom brackets, chainrings, handlebars, stems, seatposts, headsets, brake components and other parts that directly affect a bike’s handling, stiffness, reliability and ride feel. The brand is strong across road, gravel, MTB and e-bike segments, and FSA components are used both as original equipment on new bikes and as aftermarket upgrades.
FSA’s strength lies in its broad and practical product range. It is not a brand focused on just one component — FSA offers complete solutions for the drivetrain, cockpit and control areas of the bike. Cranksets, chainrings and bottom brackets help ensure efficient power transfer; handlebars, stems and seatposts influence riding position and steering precision; headsets and smaller technical parts are often the components whose quality is most noticeable when they work smoothly for years without issues.
Among FSA’s best-known product series are K-Force, SL-K, Energy, Gossamer, Omega, Afterburner, Comet and Gradient. These cover different price levels and use cases, from lightweight race equipment to reliable everyday components. FSA uses both carbon fibre and aluminium alloys to find the right balance between weight, stiffness, durability and price.
On a road bike, FSA is associated above all with a precise and stiff cockpit, quality cranksets and a smoothly functioning drivetrain. On gravel and mountain bikes, durability, confident handling and reliability in changing conditions become especially important. FSA components are made for riders who want to repair or upgrade their bike with parts that create a noticeable difference in riding position, power transfer and control.
Materials, manufacturing precision and real-world riding experience all play an important role in FSA’s development work. The brand focuses on technology, innovation and production processes designed to deliver high-performance components at a reasonable price level. This makes FSA a strong choice both for riders building a bike from the ground up and for those who want to improve an existing bike in a practical and reliable way.
FSA’s philosophy is simple: every component should help the bike work better. Cranksets must transfer power directly, the handlebar and stem must provide confident control, bottom brackets and headsets must run smoothly, and every detail must withstand real riding. That is where FSA’s value lies — technical components that do not simply aim to stand out, but make the bike faster, more precise and more dependable.

FSA Bosch Gen2 e-bike sprocket with 2.5 mm offset, heat-treated stainless steel construction and compatibility with Standard and Boost 148 systems.


FSA Bosch Gen2 black sprocket made from heat-treated stainless steel, available in 14T to 20T versions for different drivetrain setups.

The FSA M/EXO EE096 is a BB386 to 24 mm adapter for carbon cranksets, compatible with MegaExo NBD and HollowTech II systems, ensuring precise fit and smooth operation.


FSA NO.10 internal headset for 1 1/8" steerers, lightweight alloy construction and smooth performance for road, MTB and urban bikes.





FSA TH-070E headset bearing for 1.5" systems. Ensures smooth steering and long-lasting performance in everyday riding.


FSA MR137 headset bearing for 1-1/4" systems. Durable and well-sealed design ensures smooth steering and long-lasting performance.

FSA TH-073E headset bearing for 1.5" systems. Ensures smooth steering and reliable performance even under higher loads.



FSA EVO392 MTB 30/68 adapter allows BB392 EVO cranksets to be used in PressFit30 and BB30 MTB frames with accurate fit and durable performance.


FSA MTB rear wheel quick release 170 mm QR-65 V16 provides a secure, stiff fit and allows fast, tool-free wheel installation and removal.

FSA 32T MTB chainring with 104 mm BCD, designed for Shimano 3x10 cranksets and precise shifting performance.


FSA NO.51 (MR136) headset bearing for 1-1/4" systems. Provides smooth steering, durability and long-lasting performance.

FSA MTB front wheel quick release 114 mm QR-65 V16 offers a secure, stiff fit and allows fast, tool-free front wheel installation and removal.

FSA ULTRACORK handlebar tape offers excellent grip and comfort. VeX gel absorbs vibration, while the anti-slip surface ensures control even in wet conditions.


FSA ULTRACORK handlebar tape offers excellent grip and comfort. VeX gel absorbs vibration, while the anti-slip surface ensures control even in wet conditions.

FSA TH-873E-RS headset bearing for 1-1/8" systems. Ensures smooth steering and long-lasting performance with durable materials.

FSA TH-871 headset bearing for 1-1/8" systems. Ensures smooth steering and reliable performance for both road and MTB use.


FSA TH-800 headset bearing for 1-1/8" systems. Ensures smooth steering and reliable performance in everyday riding.


Lightweight 65 mm aluminum valve extender for deep rims. Ensures easy inflation and reliable performance for road and triathlon riding.