Swing Crank for riders with mobility problems

path of foot with normal crank       path of foot with Swing Crank

Use a Pulse Swing Crank when one of your legs doesn't bend as much as it should. It enables your leg to contribute as much effort as it can without being lifted so high.

• For use on upright bicycles and tricycles, but not on recumbents
• No need to raise your saddle or alter your riding position
• Uses your existing crank and pedal (see note)
• Includes a special Pulse Crank Shortener which may also be used on its own

Fully adjustable for different degrees of disability

The Swing Crank and the Crank Shortener each have three pedal holes. These allow you to adjust the effect to suit your particular needs, and you can even reduce the effect in stages as you recover from a leg injury:

Normal setup:		If you need to bend your leg less:	If you can bend your leg more:
Swing Crank: middle position Crank Shortener: middle position		Swing Crank: long position Crank Shortener: short position	Swing Crank: short position Crank Shortener: long position

There are other possibilities if you have difficulty straightening your leg completely at the bottom of the pedal stroke. For example, you can use just the Crank Shortener on its own:
Crank Shortener: middle position		Crank Shortener: short position		Crank Shortener: long position
Or you can use one of these intermediate setups:
Swing Crank: short position Crank Shortener: middle position		Swing Crank: middle position Crank Shortener: short position		Swing Crank: short position Crank Shortener: short position

(The lengths assume your cranks are 170mm long. Increase them by
10mm for 175mm cranks and reduce them by 10mm for 165mm cranks.

How to check if a Swing Crank is suitable for you

Pulse Swing Cranks suit riders who can raise their foot at least 200mm (8"). Ask a friend to help you check how high you can lift yours:

1) Raise your saddle so your leg is almost straight at the bottom. Measure height A.		2) Lift the pedal and your foot as high as you can. Measure height B.		3) The height you can lift     your foot is B - A.       You will be able to use a     standard Pulse Swing Crank     if this is 200mm (8") or more.

Riders with more severe disabilities

We may be able to supply a longer Swing Crank if you can't raise your foot 200mm. In this case we will need to modify your existing crank. Please contact us to discuss your special requirements.

Price and how to order

	£	approx	approx US$
one left or right Pulse Swing Crank complete with Crank Shortener	200.00	300.00	400.00
note: this price does not include the pedal or delivery

Click here to order.

© Chris Bell, 2008

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HIGHPATH ENGINEERING Cornant, Cribyn, Lampeter, Ceredigion, SA48 7QW, Wales, UK phone / fax:  +44 (0)1570 470035  (UK office hours only) email: