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Grow your confidence riding hard over the rough stuff with this crankset's wide-range gearing and seamless pedaling.

Benefit

Special gear tip shape improves chain engagement and retention for smooth riding over rough terrain

Technology

DYNAMIC CHAIN ENGAGEMENT+

SPECIAL GEAR TEETH FUNCTION
SHIMANO’s DYNAMIC CHAIN ENGAGEMENT+ is a special gear teeth profile designed for use in single-chainring configurations for XC, enduro, and trail riding.
It gives more chain retention and smoother pedaling - even over bumpy terrain. Chain retention of any gear will reduce abrasion and worn out.

 

Product Specification

Model No: FC-U4000-1

Series: CUES

Rear speeds: 11/10/9

Compatible chain: LINKGLIDE, HG 11-speed

Chain line (mm): 52 (30T, 32T), 50 (40T, 42T)

O.L.D.Thru (mm): 148, 142 (30T, 32T), 142 (40T, 42T)

QR/Nut (mm); 141, 135 (30T, 32T), 135 (40T, 42T)

P.C.D. (mm): Riveted

Spider/gear arms: 4

Chainring combination: 30T, 32T, 40T, 42T

Q-factor (mm): 178

Crank arm length (mm): 170 ✔175✔

Optional chain guard: With chain guard ✔ (40T, 42T)

Without chain/bash guard✔

Compatible bottom bracket type:Square ✔

Recommended bottom bracket: Threaded (normal) BB-UN101

Axle length of BB-UN/ES (mm) Threaded (normal) LL123

Threaded bottom bracket shell width (mm) 68 ✔ 73 ✔

Chain case compatible ✔ (40T, 42T)

Stainless chain guard fixing screw ✔

Crank fixing screw included ✔

Colour: Series color