Helix Core Direct Mount chainrings have a narrow, wide tooth profile for reliable chain retention and a particularly long service life. Designed with an adjustable 13.5-15.5 mm offset via spacers, they offer adaptability to both 53 and 55 mm chainlines for Bosch CX and SX motor systems. Helix Core espec rings are cold-formed from steel and then heat-treated to ensure excellent durability and toughness.
Crank compatibility | 1-speed |
Cassette compatibility | 1-speed, 12-speed |
Chainring mount | Direct recording |
Item number | 37342398 |
Manufacturer | e*13 |
Category | Chainrings |
Manufacturer no. | CR5ESA-100 |
Release date | 2.8.2023 |
Sales rank in Category Chainrings | 35 of 5186 |
Colour | Black |
Exact colour description | Black |
Material group | Metal |
Material | Steel |
Bike area of use | Electric bike |
Chainring mount | Direct recording |
Number of teeth | 34 |
Model year | 2023 |
Crank compatibility | 1-speed |
Cassette compatibility | 1-speed, 12-speed |
Country of origin | Taiwan |
CO₂-Emission | |
Climate contribution |
Weight | 400 g |
Length | 21 cm |
Width | 21 cm |
Height | 1 cm |
Weight | 250 g |
How often does a product of this brand in the «Chainrings» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
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How often is a product of this brand in the «Chainrings» category returned?
Source: Digitec Galaxus