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  • Description
  • Reviews (3)
  • Bottom Brackets Guide
  • Delivery
  • Returns & Warranty
  • Product description

    • High quality traditional style Cr-Mo JIS square axle BB with precision cartridge bearings lightweight forged Alloy cups and Carbon Fibre spacer.

    • Supplied with Hex cap type bolts.

    • 103, 107 or 110.5mm sizes.

    • A great choice for that ultimate lightweight fixie machine.

    • Weight 230g
  • Genetic Karyotype JIS Bottom Bracket Reviews

    Write your own review
    Overall Rating:
    3.9
    out of 5
    3.89
    Build Quality
    4.17
    Performance
    4
    Value For Money
    3.17

    Customer Reviews (3)

    4
    Sturdy and light

    Lightweight alternative to Shimano UN55 (as others have mentioned) as well as Miche Primato BB. Silent, smooth, and sturdy, performs well without any noticeable wear so far. On any discounted price is good value for money. On RRP ok value for money, but definitely worth it for the weight weenies out there.

    Lightweight alternative to Shimano UN55 (as others have mentioned) as well as Miche Primato BB. Silent, smooth, and sturdy, performs well without any noticeable wear so far. On any discounted price is good value for money. On RRP ok value for money, but definitely worth it for the weight weenies out there.

    Close review
    4 out of 5
    Build Quality: 4.5/5
    Performance: 4/5
    Value For Money: 3.5/5
    4
    Good alternative for Shimano

    Buying my third one. The first seemed to show some wear on the bearings before the bike was stolen. Second one seems fine but wrong length for new frame. This is much lighter than the Shimano UN55 (and more expensive), but haven't had a chance to test longevity. Seems good so far and the first one was subjected to some well-laden touring. Fits easily and smoothly into the frame, little rotational resistance, stays shiny!

    Buying my third one. The first seemed to show some wear on the bearings before the bike was stolen. Second one seems fine but wrong length for new frame. This is much lighter than the Shimano UN55 (and more expensive), but haven't had a chance to test longevity. Seems good so far and the first one was subjected to some well-laden touring. Fits easily and smoothly into the frame, little rotational resistance, stays shiny!

    Close review
    3.7 out of 5
    Build Quality: 4/5
    Performance: 4/5
    Value For Money: 3/5
    4
    Genetic karyotype bottom brackets

    Light weight reliable and a reasonable price for a traditional cassette square taper bottom bracket. Recommended. Good for tourers and classic bikes as well as fixies. A greater range of axle lengths would be useful.

    Light weight reliable and a reasonable price for a traditional cassette square taper bottom bracket. Recommended. Good for tourers and classic bikes as well as fixies. A greater range of axle lengths would be useful.

    Close review
    4 out of 5
    Build Quality: 4/5
    Performance: 4/5
    Value For Money: 3/5

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