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Home Chainring e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t, 11/12-Speed, 107BCD, Black Online Online With Mastercard

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e*thirteen Helix R 107 BCD 4-Bolt Chainring - 40t, 11/12-Speed, 107BCD, Black Online Online With Mastercard

$79.95 $30.00
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Product Description

The e*thirteen Helix R 107BCD Chainring, designed for 4-bolt 107BCD cranks like SRAM Red or Force including power meter equipped cranks, offers a performance upgrade for Gravel and Road cyclists. The 38, 40, and 42 tooth rings pair perfectly with e*thirteen's cassettes for more overall range and higher top speeds. Made from durable premium 7075 alloy, they're CNC sculpted for a high stiffness-to-weight ratio. Compatible with both SRAM and Shimano 11 and 12-speed drivetrains. Chainline is set by SRAM Crank assembly.

Compatible with 4-bolt 107 BCD SRAM cranks and Quarq power meter cranks
M4 narrow-wide tooth profile provides Shimano and SRAM 11/12-speed chain compatibility (Including flattop chains), excellent chain retention, and reduced wear
4.8mm offset (Chainline is determined by SRAM Crank assembly, 45mm for normal width cranks, 47.5mm for wide cranks)
Forged from premium 7075-T7 aluminum, then extensively CNC optimized for light weight, and technical aesthetics
Durable 7075-T7 construction for long wear-life, stiffness, and strength

Item Specifications
Chainring BCD	107
Color	Black
Defined Color	Black
Drivetrain Speeds	11
Drivetrain Speeds	12
Material	Aluminum
Ring Position/Type	Chain Retaining Single Ring
Round or Oval	Round
Tooth Count	40
Weight	74