SHIMANO NEXUS Internal Geared Hub Roller Brake 3-speed

SHIMANO NEXUS - Internal Geared Rear Hub - Roller Brake - O.L.D 120.4/126.8 mm - 3-speed

The SHIMANO NEXUS SG-3R40 hub offers a reliable 3-speed mechanism, a SILENT CLUTCH, and roller brake.

Internal Gear Shifting
Gear shifting action is independent of pedaling. You can shift gears anytime, while standing still, pedaling or coasting
Shift Modulator Mechanism
Smoothes out the shifting action while pedaling
Gear Change Support Mechanism
Weight: 885g
Color options: Black, Silver, White

TECHNOLOGIES

Brake type_Mount Type	INTER-M
Bike Type_Mount Type	INTER-M
Bike Type_Recommnended Model	BR-C3010, BR-C3000
Brake type_Recommended Model	BR-C3010 BR-C3000
Speeds	3
Gear ratio_Total	1.86
Gear ratio_1	0.733
Gear ratio_2	1
Gear ratio_3	1.364
Shifting POWER MODULATOR	✔
Spoke hole_28H	✔
Spoke hole_32H	✔
Spoke hole_36H	✔
Axle length (mm)_182	✔
Axle length (mm)_182	✔
Axle length (mm)_184	✔
Axle length (mm)_184	✔
Axle length (mm)_Others	170/177/189/192
Shifting structure	Low Normal
Flange distance (mm)	53.5
Offset (mm)	0.8(120mm Axle) / 2.5
P.C.D. left / right (mm)	74
Flange diameter (mm)	84
O.L.D. (mm)	120/127/130
Spoke hole_28H	✔
Spoke hole_32H	✔
Spoke hole_36H	✔
Driving efficiency	Standard
Flange diameter (mm)	84
Flange width (mm)_Left	2.3
Flange width (mm)_Right	2.3
Gear change support mechanism	✔
O.L.D. (mm)	120/127/130
Offset (mm)	0.8(120mm Axle) / 2.5
P.C.D. (mm)	74
Spoke size	#13/#14
Flange distance (mm)	53.5
Rear speeds	3