NS Bikes Eccentric CroMo - 2017

NS Bikes Eccentric CroMo
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This item is available for FREE Ground Shipping or FREE Home Delivery (Bikes over $499) in the Greater Bay Area and Sacramento Region. It is also available for Local Pickup at any Mike's Bikes. Choose your preferred option and our cycling experts will ship the product or contact you to arrange delivery or pickup.


The heart of this beautiful 29'er is the amazing steel frame built with custom drawn Tange Tubes with built in gussets.

It has very aggressive modern geometry with a very long reach and a super slack head angle. The weight of the frame is approximately 2.4KG which is light by any standards, but don't worry, it's 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 dirt-jump hardtails has been funneled into this frame and we are sure it's the very best.

M5 alloy chassis and rear-end, asymmetrical design, 29 Style-Specific EVO Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel
FOX FLOAT Rhythm 36, GRIP Damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel
FOX FLOAT DPX2 Performance, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment, 210x50mm
Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
SPOKES DT Swiss Industry
Roval Traverse 29, hookless alloy, 30mm inner width, tubeless ready, 28h
Standard, Presta valve
NS Bikes 4130 cromoly frame, built with Tange Eccentric tubes, Boost 148x12 dropouts
Sizes: S,M,L
Rock Shox Recon 140mm travel, 15x110mm Boost, alu taper steering tube
GW integrated tapered IS42/IS52, sealed bearings
NS Tone 31.8, 45mm
NS Bar, 760mm 12mm rise
Grips: NS Hold Fast
Kind Shock E30i-S Stealth dropper-post, 125mm travel, 30.9
Octane One Rocket CrMo hollow rails
Front Brake:
Sram Level, 180mm
Rear Brake:
Sram Level, 180mm
Levers: Sram Level
Octane One Solar 29” tubeless ready
Spokes w/14mm nipples
Front hub:
NS Rotary 15 Boost 15x110 disc (sealed bearings)
Rear hub:
NS Rotary Cassette 148x12mm Boost (sealed bearings)
Tires front / rear:
WTB Trail Boss 29x2.4 foldable bead TCS Light/Fast Rolling Dual DNA Compound, Lightweight Skinwall
SR Suntour Zeron 1X AX-S-BT-30t 175mm
Bottom Bracket:
SR Suntour Euro BB BSA
Pedals: N/A
Chain: Sram, 11 spd
Chainguide: N/A
Sram NX Type 2.1, long cage, 11spd
Shifters: Sram NX, 11spd
Sun Race CSMS7 11spd 11-42t
Weight (kg): 13.9

Eccentric Cromo   S M L
Wheel size 29"
Fork travel 140 140 140
Reach mm 415 435 460
in 16,3 17,1 18,1
FC mm 740 764 793
in 29,1 30,1 31,2
Standover mm 792 815 841
in 31,2 32,1 33,1
Stack mm 627 636 645
in 24,7 25,0 25,4
Effective TT mm 595 617 645
in 23,4 24,3 25,4
Actual TT mm 583 596 618
in 23,0 23,5 24,3
Seat tube mm 407 445 495
in 16,0 17,5 19,5
Chain stays mm 420 420 420
in 16,5 16,5 16,5
BB rise mm -55 -55 -55
in -2,2 -2,2 -2,2
Headtube angle 65,0 65,0 65,0
ST angle effective 74,0 74,0 74,0
Wheelbase mm 1154 1179 1208
in 45,4 46,4 47,6


NS - Bikes Eccentric ChrMo

Part Numbers

Option MPN Store SKU
Small NSB-1720 37056
Medium NSB-1721 37057
Large NSB-1722 37058


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