Chainring e*spec Aluminum Direct Mount | 34T | Brose S Mag | Black (CR4UPA-103) (CTN10)
e*thirteen e*Bike Chainrings (for bicycle chainrings, click here)
Available in a wide range of options to suit mosts needs.
Helix Race eBike chainrings
LIGHTER WEIGHT. LONGER WEAR LIFE.
Helix Race e*spec Chainrings merge cutting-edge design and performance. Designed for Bosch™ equipped e-bikes, this 1pc direct mount chainring is forged from 7075 AL for lightweight durability, impressive stiffness, and a standout technical aesthetic. Its custom metal dust cover enhances style and minimizes seal and lockring contamination.
The new M4 narrow-wide profile delivers enhanced chain retention and cross-compatibility with Shimano, Sram, and TRP 11/12s drivetrains, including SRAM ™ T-Type™. It's available in a variety of colors for coordination with e*thirteen cranks, cassettes, stems, tubeless valves and more. The Bosch version is available with 13mm offset (53mm chainlne) and 15mm offset (55mm chainline) in 32T and 34T sizes, it supports dropping a chainring size to take full advantage of e*thirteen’s proprietary 9T smallest cog, wide range cassettes.
PRODUCT SPEC
Chainline
13mm offset for 53mm chainline
15mm offset for 55mm chainline
Colour
13mm: Black, Bronze, Eggplant, Naranja
15mm: Black, Bronze, Silver
Compatibility
Bosch Gen4 CX Motor
Bosch Performance Line SX
T-Type Chain Compatible
Features - Lightweight, stiff, long wearlife, with technical aesthetics and enhanced chain retention. Cross compatibility with Shimano, Sram, and TRP 11/12s drivetrains.
Included - Integrated Aluminum Dust Cover (rubber seal is specific to Helix Race cranks and not included)
Material - Forged-CNC 7075 AL
Mount - Fits cranks on Bosch ISIS spindles
Pairs perfectly with e*thirteen Helix Race e*spec Alloy Cranks
Size - 32T, 34T
Weight
13mm offset: 32T: 99g
34T:107g
15mm offset: 32T: 108g
34T:114g (without rubber dust seal)
e*spec Direct Mount Aluminium
Our new direct mount e*spec chainrings use our new M3 narrow-wide tooth profile, which reduces weight without sacrificing chain-retention. In making our SL and UL chainrings lighter and more beautiful than their predecessors, we adapted a similar design to work with Bosch, Brose, and Shimano motor configurations.
Fits - 52mm or 53mm (Boost chainline)
Compatibility - Bosch™, Brose™, Shimano™ & Fazua™
Options - 32t (Shimano only), 34t, 36t, 38t
e*spec Direct Mount steel
Our steel direct mount rings provide great performance and long life at a killer price for todays high-performance e-bikes.
Fits - 52mm or 53mm (Boost chainline)
Compatibility - Bosch™
Options - 34t, 36t, 38t
CR4EPA-102
CR4EPA-103
(ETG-CR-EB-PAR)
SKU | ETG-CR-EB-PAR |
Brand | e*thirteen |
Shipping Weight | 0.4000kg |
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