• NS Bikes Eccentric Cromo Frame 2015

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NS Bikes Eccentric Cromo Frame

A beautiful yet tough hardtail frame for all mountain and trail riding. NS built this frame using Tange Eccentric chromoly tubes that have been developed over the years for their dirt-jump bikes.

The result is an incredibly strong yet light hardtail for aggressive trail riding. The Eccentric is designed primarily for 650B wheels but will work with 26” too. Rides best with a 140-150mm fork. The weight of the frame is approximately 2.4kg which is light by any standards, but thanks to their in depth knowledge of steel frame constructions NS know that it will also be strong enough to hold up to a lot of abuse. All the know-how that NS has managed to acquire over the years in building steel hardtails has been funnelled into the frame of this bike and it really is the very best money can buy.


  • Wheels: designed to fit 27.5”/650B but works also with 26” wheels.
  • Recommended fork Travel: 130-150mm
  • Material: Custom butted 4130 chromoly, Tange Eccentric tubes
  • Head Tube: Semi integrated Zero Stack (ID 44mm)
  • Headtube Length: S size: 105mm, M size: 115mm, L: 125mm
  • Fork Compatibility: standard 1-1/8” or tapered 1.5 - 1-1/8” steerer tubes (forks with taper 1.5 – 1-1/8” steerer tubes can fit ZS44/44 headtube using special headsets with external lower cup (FSA Orbit ITA-A, ITA-B, Cane Creek XX44)
  • Hub Spacing: 142x12mm, NS axle included or 135x10 bolt-on only (adaptors included)
  • Brakes: IS-2000 disc brake mount, max rotor size: up to 185mm
  • Bottom Bracket: threaded 73mm with ISCG-05 mounts
  • Biggest Chainring: up to ~38t
  • Front Derailleur: high clamp only, top pull, dia. 33mm/shim to fit 34.9 included. 
  • Seatpost: 30.9
  • Seatclamp: 34.9
  • Maximum Tyre Size Recommended: 2.35”
  • Weight (w/o shock, w/o axle): ~2.49kg
  • Additional Features: Stealth cable route in seat tube for dropper post

Buy NS Bikes Frames from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

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Buying Guide

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