SRF3

Description

• 3 Speed Internal Gear Hub no Brake (Freewheel)
• Available with 175mm axle length with either a 126.8mm, or 118.9 OLD
• Also Available with 162.7mm or 148mm axle lengths

Specs for 175.0mm Axle with 126.8mm OLD

• Hub Shell Material - 6061 Aluminum
• Axle Diameter - 13/32” Slotted
• Axle Length - 175.0mm
• Over Locknut Dimension - 126.8mm
• Right Axle Protrusion Length - 23.8mm
• Left Axle Protrusion Length - 24.4mm
• Spoke Holes - 36
• Pitch Circle Diameter - 65.1mm
• Flange Width - 54.0mm
• Spoke Compatibility - 13g or 14g
• Sprocket Teeth - 13T through 22T
• Chain Line: 1/8” Flat 13T ? 19T - 44.6 43.0
• Chain Line: 1/8” Dished 17T ? 22T - 46.3 44.7 42.9 41.3
• Chain Line: 3/32” Flat 16T - 44.8 44.2 43.2 42.6
• Chain Line: 3/32” Dished 17T ? 22T - 46.6 45.0 42.4 40.8
• Indicator Chain - HSA420 Mark V
• Weight - 1060g

Specs for 175.0mm Axle with 118.9mm OLD

• Hub Shell Material - 6061 Aluminum
• Axle Diameter - 13/32” Slotted
• Axle Length - 175.0mm
• Over Locknut Dimension - 118.9mm
• Right Axle Protrusion Length - 30.1mm
• Left Axle Protrusion Length - 26.0mm
• Spoke Holes - 36
• Pitch Circle Diameter - 65.1mm
• Flange Width - 54.0mm
• Spoke Compatibility - 13g or 14g
• Sprocket Teeth - 13T through 22T
• Chain Line: 1/8” Flat 13T ? 19T - 42.45 40.83
• Chain Line: 1/8” Dished 17T ? 22T - 44.2 42.5 40.8 39.1
• Chain Line: 3/32” Flat 16T - 40.3 38.6 44.5 42.8
• Chain Line: 3/32” Dished 17T ? 22T - 42.7 42.1 41.0 40.4
• Indicator Chain - HSA420 Mark V
• Weight - 1050g

Specs for 162.7mm Axle

• Hub Shell Material - 6061 Aluminum
• Axle Diameter - 13/32” Slotted
• Axle Length - 162.7mm
• Over Locknut Dimension - 117.3mm
• Right Axle Protrusion Length - 21.5mm
• Left Axle Protrusion Length - 23.9mm
• Spoke Holes - 36
• Pitch Circle Diameter - 65.1mm
• Flange Width - 54.0mm
• Spoke Compatibility - 13g or 14g
• Sprocket Teeth - 13T through 22T
• Chain Line: 1/8” Flat 13T ? 19T - 43.3 41.6
• Chain Line: 1/8” Dished 17T ? 22T - 45.0 43.3 41.6 39.9
• Chain Line: 3/32” Flat 16T - 43.5 42.9 41.8 41.2
• Chain Line: 3/32” Dished 17T ? 22T - 45.3 43.6 41.0 39.4
• Indicator Chain - HSA315 Mark III
• Weight - 1040g

Specs for 148.0mm Axle

• Hub Shell Material - 6061 Aluminum
• Axle Diameter - 13/32” Slotted
• Axle Length - 148.0mm
• Over Locknut Dimension - 107.7mm
• Right Axle Protrusion Length - 20.0mm
• Left Axle Protrusion Length - 20.3mm
• Spoke Holes - 36
• Pitch Circle Diameter - 65.1mm
• Flange Width - 54.0mm
• Spoke Compatibility - 13g or 14g
• Sprocket Teeth - 13T through 22T
• Chain Line: 1/8” Flat 13T ? 19T - 40.0 38.4
• Chain Line: 1/8” Dished 17T ? 22T - 41.8 40.1 38.4 36.7
• Chain Line: 3/32” Flat 16T - 40.3 39.7 38.6 38.0
• Chain Line: 3/32” Dished 17T ? 22T - 42.0 40.4 37.9 36.2
• Indicator Chain - HSA126 Mark II
• Weight - 1020g

Gear Ratio

• Overall Range - 177%
• Gear 1 - 0.75 (-25.0%)
• Gear 2 - 1.00 (Direct Drive)
• Gear 3 - 1.33 (+33.3%)