Wolf Tooth Direct Mount Chainring for Bosch Gen 4 E-Bike Motor for Shimano 12 speed Hyperglide Drop Stop ST 32T

• Chainring is compatible with all Boost and Super Boost bikes that use the Bosch Gen 4 e-bike engine
• 55mm Chain
• Drop-Stop B tooth profile is compatible with almost all 9, 10, 11 and 12 speed chains, including SRAM T-type transmission
• Drop-Stop ST tooth profile is compatible with Shimano HG+ 12-speed chains and 12-speed KMC chains
• Made in the USA

The Wolf Tooth Direct Mount Bosch Gen 4 E-Bike Motor Chainring brings the brand’s Drop-Stop technology to E-Bikes using the Gen 3 E-Bike Motor from Bosch, winner of Best Motor Brand E-MTB category at eMTB News’ User Award 2023.

Drop-Stop technology reduces chain drop, helps shed mud, and reduces friction and wear on the chain, helping to extend its life.

Specifically, a Drop-Stop ST profile means that this chainring is optimised for use with Shimano HG+ and 12 speed KMC chains and is not compatible with any other chain types.

Key features:

• Brings Wolf Tooth’s Drop-Stop® technology to E-Bikes powered by Bosch Gen 4 E-Bike Motor


• Compatible with 12 speed Shimano HG+ and KMC chains only


• Made from quality 7075-T6 aluminium at Wolf Tooth’s Minnesota, USA HQ

Department: ‎Unisex
Item Length: 431
Part Type: Chainring
Size: 32T
Type: Chainring

Material: ‎Aluminium

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.