A 7075-T6 aluminium chainring for SRAM's 3-bolt direct mount interface, machined from billet for strength and wear resistance.

Highlights

  • 7075-T6 aluminium, black
  • 3mm offset from the mounting surface
  • M4 narrow-wide tooth profile for chain retention
  • 3-bolt direct mount
  • 28T, 30T or 34T

Compatibility & fit

Fits all SRAM 3-bolt direct mount cranks and other-brand cranks using a 3-bolt chainring interface. Runs on SRAM and Shimano 11 and 12-speed chains. This is a fixed 3mm offset ring, not flip-flop — check your crank's spindle/chainline before ordering. The Tune workshop can fit it as part of a drivetrain service.

Options

TeethWeight
28T52g
30T58g
34T68g
e*thirteen's standard warranty covers this product for 10 years against manufacturing and material defects; normal wear, crash damage and misuse aren't covered, though e*thirteen's Infinite Ride programme offers a discounted replacement after a crash. For warranty support, return the product to Tune Cycles and we'll manage the claim with e*thirteen's Australian distributor. This is in addition to your rights under the Australian Consumer Law, so keep your proof of purchase.
  • 7075-T6 aluminium, billet-machined
  • 3mm offset
  • M4 narrow-wide tooth profile
  • 3-bolt direct mount
  • 28T / 30T / 34T
Brande*thirteen
ModelHelix R 3-Bolt Direct Mount
Material7075-T6 aluminium
Offset3mm
Mount3-bolt direct mount
ColourBlack
CompatibilitySRAM 3-bolt direct mount cranks (and other 3-bolt cranks)
ChainSRAM/Shimano 11 and 12-speed
Teeth options28T / 30T / 34T
SKU DTW-ETG-CR4HRA-14-PAR
Brand e*Thirteen