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The Helix Plus 9-50T cassette from E*THIRTEEN is the perfect upgrade for your e-bike, MTB or any other 12-speed system that demands top performance and durability.

Featuring an innovative 9-tooth smallest cog that allows for a smaller front chainring and shorter chain length, this model is ideal for rides that combine power with efficiency. The derailleurs and shifters are fully compatible with SRAM, Shimano and TRP, which means trouble-free shifting even in the toughest conditions.

1. Compatibility and Versatility
   The cassette is fully compatible with SRAM, Shimano and TRP derailleurs, giving the rider great versatility and ensuring trouble-free shifting.
2. Increased range and reduced weight
   The 9-tooth sprocket allows for a smaller chainring, increasing range and reducing overall system weight.

• Compatible with 12-speed systems
• 9-50T - extended gear range
• Reduced unsprung weight
• Superior shifting without compromise
• Suitable for electric bikes
• Two-piece design for easy replacement

Specifications:

Material: 2 aluminum gears, 10 steel gears
Range: 556%
Size: 9-50T (9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50)
Speed: 12 speed
Weight: 406g

Compatibility:

With SRAM, Shimano, TRP derailleurs and shifters
For XD™ and XDR™ derailleurs only