The e*thirteen Helix R 12-speed cassette in a two-cluster design for mountain and gravel bikes

This Helix R cassette from e*thirteen for gravel and MTB use is equipped with 12 sprockets distributed over two clusters. This makes it possible, in the event of earlier wear, to replace only the largest sprockets after heavy use.

Specifications:

Application:

Gravel, Cross Country, All Mountain, Enduro

Gearing:

12-speed

Gradation(s):

9-45 t, 9-50 t

Sprocket Material:

steel, aluminium

Freehub Compatibility:

SRAM XD

Technical Information:

Series:

Helix R

Features:

• " intergalactic" sprocket with twice as durable PVD finish
• pinion 1 to 10 made of steel, pinion 11 and 12 made of aluminium, optimised interface between the clusters
• two-piece design allows replacement of the aluminium pinions
• suitable for 12-speed drivetrains from Shimano or SRAM
• improved shifting performance
• large bandwidth due to smallest sprocket with 9 teeth, making the use of smaller chainring possible
• lightweight

Models:

9-45:

Gradation:

9-11-13-15-17-19-22-25-28-32-38-45 t

Manufacturer Numbers:

FW2HRA-100 (intergalactic), FW2HRA-101 (grey)

9-50:

Gradation:

9-11-13-15-17-20-23-27-31-36-42-50 t

Manufacturer Numbers:

FW2HRA-102 (intergalactic), FW2HRA-103 (bronze), FW2HRA-104 (eggplant), FW2HRA-105 (naranja), FW2URA-112 (grey)

Contents:

• 1 x e*thirteen Helix R 12-speed Cassette