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Sturmey Archer X-RD Aluminium Drum Brake Hub for use with Screw-on Multiple Freewheel - 36 Hole

£63.99
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£63.99 Please note this product has selling restrictions to your country. was
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SJS Cycles part number : 
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Details
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Questions & Answers (2) Q & A
Details
• Rear Thread On Freewheel Hub with 70mm Drum Brake
• Hub Shell Material - A356 Aluminum
• Bearing Type - Sealed Cartridge
• Axle Diameter - 9mm
• Axle Length - 183.0mm
• Over Locknut Dimension - 135.6mm
• Right Axle Protrusion Length - 30.6mm
• Left Axle Protrusion Length - 16.8mm
• D-Dimension - 32.5mm
• Spoke Holes - 36
• Pitch Circle Diameter - 89.8mm
• Flange Width - 55.8mm
• Spoke Compatibility - 13g or 14g
• Weight - 800g
Specification
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Questions & Answers (2)
Re-Spacing The X-Rd
By
25 Jun 2016
Hi, do you think it would be possible for me to experiment with different size spacers to obtain enough room for a 5 speed (or 7 ideally) freewheel and keep it to about 126-127mm? From the diagram in the technical docs you link here it would seem doable... Thanks!
SJS Customer Service:
Hi,

Although in theory it should be possible to change the spacers, as these hubs are designed around a 135mm I doubt you will be able to reduce it to 126/127mm I'm afraid.

Thanks.
Tandem Drum Brake Week Build
By
22 Oct 2015
Hi, Im thinking about retrofitting a drum brake to an Orbit Gemini tandem. Its about 20 years old and has centrepull brakes and a 7 speed screw on freehub at present, with a 3 ring chainring up front. Based on this SA hub, the Rigida RM19 rip and a wheel build I make this out to about £170. I'd need to add a brake lever and cable for the the stoker to operate the brake from the back seat. What I'm wondering is how feasible this is ... in particular can you advise on how the cable routing would work as obviously at present there is no baze on or bracketry to secure the cable on the frame and unless this can be accomodated the ideas a nonstarter
SJS Customer Service:
Hi,

The hub comes with a chainstay clip for securing the brake arm and the cables can be secured using clamp on cable guides, you will need to check the diameter of the tubing to make sure you get the correct size but the one we recommend are SJSC part 37775. The only other thing you'll need to check is the rear hub spacing of your frame as this hub is 135mm wide within the dropouts. Other than this you should be fine fitting this hub to your tandem.

Thanks.