Available for road compact standard cranksets these cnc sculptures enable significant weight reduction and shiting performance that are second to none.
For long lasting performance all rings are fully Hard-Coated. The process reduces chain stiction.
Unique 15° machined chain ramps offer superior chain engaging on 8 different crank positions, this translates in super quick up-shifting performance.
Special machined teeth help both up and down chain shifting.
Features: chainring set 39/53T
Material: Ergal 7075 T6
Construction: hyper accurate cnc
Ramps: 5 cnc with unique 15° profile
Machined Teeth: 20 external, 33 internal
Compatible: Road compact standard 110mm BCD
Finishing: Hard Black Anodized
We recommend to use OctaRamp CH-2 complete set for a correct ring phase.
Weight: 105gr set
Description
Product Details
- SHAPE
 - Round
 - MOUNT / BOLT CIRCLE DIAMETRE
 - 110mm 5 holes
 - MATERIAL
 - Aluminum
 - POSITION
 - Set
 - VELOCITY
 - 10s
11s 
            
            EXTCHA0001926