

It’s in our DNA to solve problems.
Helix components are engineered to bridge the compatibility gap between SRAM™ and Shimano™ components, ensuring versatility and flawless performance. Future-proof your bike with e*thirteen Helix.
556% is more range than any other cassette on the market
Helix R features replaceable gear clusters and Intergalactic PVD finishing
11 or 12 speed and 5 different colors
Lighter than both XTR & XX1






More Range, Less Weight
The HELIX R 12 Speed Cassette is an upgrade to any SRAM™ Eagle or Shimano™ drivetrain, with more range than any other cassette on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain.
Competitive Advantage



The Numbers Talk
12 SPEED | GEAR RANGE | TOTAL WEIGHT | TOTAL PRICE |
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Helix R 11 speed configuration is also compatible with both Shimano™ and SRAM™ Drivetrains.
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e*thirteen Helix R 9-50t | 556% | 375g | $279 ($309 Intergalactic) |
e*thirteen TRS+ 9-50t | 556% | 405g | $229 |
e*thirteen TRS+ 9-46t | 511% | 336g | $229 |
Shimano™ XTR: 10-51t | 510% | 376g | $379 + $100 Microspline Freehub |
Shimano™ XT: 10-51t | 510% | 469g | $159 + $100 Microspline Freehub |
SRAM™ XX1 Eagle 10-52t | 520% | 377g | $449 |
SRAM™ X01 Eagle 10-52t | 520% | 377g | $385 |
SRAM™ X01 Eagle 10-50t | 500% | 363g | $385 |
SRAM™ GX Eagle 10-52t | 520% | 452g | $215 |
11 SPEED | |||
e*thirteen Helix R 9-46t | 511% | 370g | $279 |

Additionally, if your wheel has a SRAM™ XD Driver and you want to upgrade to Shimano™ 12s, you not only save money on the cassette, you don’t have to spend the extra on a new hub driver.
Even More Choice
Ace Hayden


Not only does the new Helix cassette come in great colors and look amazing on your bike, It brings precise shifting, ride quality, and longevity to another level. I have been incredibly impressed and also don't mind all the extra compliments!”