FSA BOOST sprocket, 15 teeth, for BOSCH® Gen2 eBike motors (2.5 mm offset)

This FSA BOOST sprocket with 15 teeth is intended for second-generation Bosch motors. The 2.5 mm offset moves the chainline 2.5 mm outwards and thus compensates for the Boost standard, where the axle width grew from 142 mm to 148 mm (3 mm per side). Even without a Boost rear end, shifting the chainline can be useful.

Compatibility

A precise fit for the following drive units:

• BOSCH® Active Line (BDU2xx, 2014–2017)
• BOSCH® Performance Line (BDU2xx, 2014–2019)
• BOSCH® Performance Line CX (BDU2xx, 2014–2019)
• BOSCH® Performance Line Speed 45 (BDU2xx, 2014–2019)

Technical data

• Teeth: 15
• Offset: 2.5 mm
• Pitch: 1/2" (12.7 mm)
• Drivetrain: compatible with 8- to 12-speed drivetrains

Installation note

Direction of rotation and tightening torque (20–25 Nm) are marked on the supplied lockring (OPEN/CLOSE): removal clockwise, installation counter-clockwise.

Goes well with this:

• Complete overhaul: Revision kit for e-bike engines – suitable for Bosch Gen2 Performance / CX
• Main bearing service: Main bearing / crankshaft bearing repair kit - suitable for BOSCH Gen2 (CX, Speed)

Product data at a glance:

• Item: FSA BOOST sprocket, 15 teeth (WA133-15T)
• Scope of delivery: 1x sprocket, 1x O-ring, 1x adapted narrower lockring
• SKU: GEN2RITZFSABOOST
• Part numbers: WA133-15T, 421586935
• EAN: 4713170243530

Legal notice:

The BOSCH® trademark is legally protected and is only used here because it describes the compatibility of this product. This item is not an original spare part from the BOSCH® brand, but is fully compatible with the above-mentioned eBike motors from this brand.