Extralite OctaRamp mtb chainring

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  • In order to last for long all rings are firstly cnc'ed from Ergal 7075T6 then hard anodized and finally machined on both chain sides. Special machined teeth help both up and down chain shifting. Unique 15° machined chain ramps offer superior chain engaging on 8 different crank positions, this translates in super quick up-shifting performance.

    OctaRamp 22T - 22E - 15g
    • Machined Teeth : 22 internal angle
    • Bcd (Bolt Circle Diameter): standard 64 mm 4 bolts

    OctaRamp 30T - 32g
    • Specials : 4 integrated spacers and sockets.
    • Bcd (Bolt Circle Diameter): standard 104 mm 4 bolts.
    • Developed for extreme racing setups it reduces the overall shifting time per/race while allowing a shorter bb spindle and lower "Q" factor.
    • Beside your small ring you'll cut some extra weight using a shorter bb and the 4 integrated chainring threaded sockets, 1 piece billet machined with the ring.
    • Special Finishing available: "Hart-Coat" bronze anodized for long lasting performance.

    OctaRamp 32T - 32 g
    • Ramps: 8, unique 15°angle
    • Machined Teeth : 16 internal
    • Bcd (Bolt Circle Diameter): standard 104 mm 4 bolts

    OctaRamp 44T - 59g
    • Ramps: 8 with unique 15°angle
    • Machined Teeth: 24 external, 12 internal
    • Bcd (Bolt Circle Diameter): standard 104 mm 4 bolts
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This item is crafted in Italy