Shimano Deore FC-M617 Chainring - 38t 10-Speed 104mm BCD For 38-24t Set TPI-55 Do not use the Lumina

Do not use the Lumina as a hand-held lighting device when in high and boost modes

5 Upper Cup 44mm

42 BB/Frame Interface BB30a BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 129 Spindle Interface Type SRAM/Truvativ GXP Defined Color Black

Tubeless and hookless rim profile optimized tire bed for easy tire installation

Designed engineered and manufactured in-house each and every RAP II-tool is brimming with innovative features—from lightweight ergonomic machined-aluminum side plates with integrated magnetic quick-link holders to longer hardened steel tool bits for easier access to hard-to-reach-bolts

Shimano Deore FC-M617 Chainring - 38t 10-Speed 104mm BCD For 38-24t Set TPI-55 Do not use the LuminaShimano Deore FC M617 Chainring 38t 10 Speed 104mm BCD For 38 24t Set. Deore M617 ChainringCompatible with 4 bolt 104 64 pattern crank arms TECH SPECS Color Black Ring Position Type Outer Tooth Count 38 Drivetrain Speeds 10 Chainring BCD 104 Material Aluminum Defined Color Black