e*spec Race Carbon Cranks - Gen4


We're now bringing our World Cup proven technology to the eBike marketplace, with our e*spec Race Carbon Cranks.

In contrast to our Gen3 carbon cranks, the Q Factor, overall profile, and volume of our Gen4 cranks has been greatly reduced. e*spec cranks have an 8mm self-extractor built in to both arms for easy removal of press-fit versions.

Available for Bosch Gen4 CX, Brose S Mag drive, Fazua Ride 50, TQ and Shimano EP8.

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Product Spec

Stealth Black w/Protective Vinyl
Bosch CX Gen4
Brose S Mag also compatible with Fazua and TQ Motors
NOT compatible with Fazua Ride 60 with ETOR spindle
World Cup proven layup. Slim Q factor, overall profile, and volume. 8mm self-extractor in each arm.
Crankset, APS Adjuster, Installation Tools, Crank Boots (x2), Sticker, User Manual
160mm, 165mm, 170mm
World-Cup DH-rated layup and construction, compacted carbon fiber, with additional 3k added to front and rear faces of crank for impact resistance
Self Extractor
INTERFACE: Bosch CX Gen4 or Brose S Mag
Bosch Gen 4
160mm: 364g - 165mm: 358g - 170mm: 368g

Brose S Mag Fazuza
160mm: 343g - 165mm: 324g - 170mm: 328g

Shimano EP8
165mm: 400g

Tech Info

User manual
Frequently Asked Questions

Guaranteed to be free from
defects in materials or workmanship
for 5 years after original purchase