Extralite Hyper JR

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  • Dimensions

    Spoke hole : 2.5mm
    Disc flange drilling : 55,6mm
    Center to left flange: 35mm
    Center to right flange: 23mm
    Right flange drilling : 55,6mm

    You can count on beefy and properly-dimensioned bearings coupled with a highly engineered axle, body and parts. Wheel rotates on 2 main bearings (6903-2rs) that can handle 250kg each in the worst static condition.
    It took more than a year of continuous testing to develop and fine tune the HyperRear's fully-alloy front-engagement freewheel mechanism. This new device is able to manage extremely high torque values, offers 36 quick engagement positions for a precise feel and a minimal friction resistance.
    Wear and tear of freewheel parts is also higher than conventional pawl systems, however the wearable parts can be easily replaced.
    Micro-tuner: easy to set external bearing preload system integrates external Soft-Touch o-ring seals. Precise hub bearing setting ensures low bearing friction, durability and no play at the rim.


    Features & Information

    • Weight: 182g (32h-QR12-XD)
    • Material: special 7075TXX
    • Available Drillings: 32H or 28H
    • Internal sealing: 2xrs seals on each bearing
    • External sealing: Soft-Touch o-ring on both hub sides
    • Frame standards: 135 x 10mm or QR12 (142mm, 142+, X-12)
    • Micro-Tuner: easy to set external bearing preload system
    • Cassette standards: Shimano/Sram 8-9-10s or Sram XD-Drive (XX1)
    • Freewheel: Hyper engineered front engagement system, 36 engagement positions
    • Axle construction: multi-shaped, 17mm, rectifyed to micro tolerances
    • Bearings: heavy duty 2x17-30 + 2x17-26 2RS sealed cartridges
    • Finishing: "hart coat" sides, black anodized body
    • Graphics: laser etched
    • Optional: "HDC-Hybrid R" hybrid-ceramic bearings
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This item is crafted in Italy