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Nimbus ISIS Hub - 36 Hole

93% of 100
This is the next generation of hub. It is built to be more robust and durable than the traditional cotterless hub.


  • ISIS spline is strong and creak free 
  • Tempered 4130 CrMo spindle    
  • Wide flange spacing for increased wheel strength.    
  • Flange material hardness and shape are designed to maximise spoke strength.    
  • Sealed, 42mm bearings with standard 100mm spacing    
  • Available with 36 or 48 spoke holes    
  • Comes with pair of ISIS bolts.    
  • Weighs: 530g (560g including bolts and spacers)

Compatible with all ISIS unicycle cranks except Koxx ISIS cranks.

Note: this hub will not fit in frames with machined bearing housing designed for 40mm bearings. It requires either pressed bearing housings or frames machined to take these larger bearings.

Hub flange width (W) = 62.8mm Hub flange Diameter  (D) = 56.5mm Hub hole Diameter (S) = 2.8mm

Information on the spoke length for building a wheel can be found on our Spoke Calculator

More Information
Bearing Size
Bearing Spacing
Crank Type
Number of Spokes
36 Hole
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  • Nimbus Unicycles Manufacturers Page

    Nimbus Unicycles was started in 2001 and is the premier house brand of Unicycle.com.

    The brand was started to help differentiate between our standard unicycles and the newer higher end unicycles we were designing in response to the requests fro...
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