Chainrings

- Standard 4-bolt ring with Drop-Stop tooth design to prevent unwanted chain drop - Recommended for use with 10 or 11sp chain (10sp chain works on 9sp drivetrain) - Designed and manufactured in the USA from 7075-T6 aluminum alloy - 36g (30t)

Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains. - 104mm BCD - Material: Aluminum

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Dimension Multi Speed Chainrings. - CNC-machined AL-7075 - Has ramps and pins to aid in shifting (not on 74mm BCD inner chainring) - Same BCD as Surly Long Haul Trucker, Cross-Check, and Troll complete bikes (74mm & 110mm)

Dimension Chainrings. - No ramps, pins, or shift aids