Ethirteen Helix Sram XD Cassette 12s 13-52 Code:FW2HRA-108 Cartridge system - extremely reliable

Cartridge system - extremely reliable and easily serviceable

The design effectively dampens shocks and vibrations

IMPORTANT: Allpine Light does not remove the lubricant from the chain

SR SUNTOUR - XCR REBOUND DIAL

Ethirteen Helix Sram XD Cassette 12s 13-52 Code:FW2HRA-108 Cartridge system - extremely reliablee*thirteen Helix Race Cassette 12 speed 13 52T Bronze A close ratio cassette specifically for e bikes. Enter the Helix Race 13 52T a new 12 speed close ratio cassette, specifically engineered for steep terrain where climbing speeds are high, and descents are gravity powered. The 13T, in combination with a 32T chainring, at 85rpm cadence, will deliver speeds at or just above 32kmph 20mph, which is just beyond the speed limited assistance of most e