Extralite OctaRamp CH2 Road Compact Hi-Ratio Chainrings
Now you can combine compact cranks and hi-ratio chainrings. For long lasting performance all rings are fully hard anodized. Unique 15° machined chain ramps offer superior chain engaging on 5 different crank positions, translating to super quick up-shifting performance. Special machined teeth help both up/down chain shifting.
Ratio: 53T + 39T
Material: 7075 T6
Hyper Accurate CNC Construction
Ramps: 5 CNC with unique 15° profile
Machined Teeth: 20 external, 33 internal
Compatibility: Shimano/Sram, Campagnolo, 10/11 speed compatible
Standard: Road compact standard 110m BCD (note: not 130BCD)
Finishing: Hard Black Anodized
Laser etched graphics
Made in Italy
Mfr Claimed Weight
Note: Chainring bolts are not included.