Swing Cranks for riders with mobility problems

Price-list and order-form
Fitting instructions

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

Use a Pulse Swing Crank when one of your knees 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.

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. You can even reduce the effect in stages as you recover from a leg injury:

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

Crank Shortener: middle position Swing Crank: short position		Crank Shortener: short position Swing Crank: middle position		Crank Shortener: short position Swing Crank: 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 164mm (6½"). 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 raise your foot is B - A. You should order a standard Swing Crank if this is 200mm (8") or more.    (190mm if you use a 165mm crank,    210mm if you use a 175mm crank) If you cannot manage 200mm but can manage 164mm (6½") then you should order a long Swing Crank - see below...    (154mm if you use a 165mm crank,    174mm if you use a 175mm crank)

Long Swing Crank for riders with more severe disabilities

Long Swing Cranks are only recommended for riders who can't raise their foot 200mm (8") but can still manage at least 164mm (6½"). They are available in 2 different types and offer the following possibilities, plus various intermediate setups:

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

3-hole Long Swing Crank for bicycles

The Swing Crank and the Crank Shortener each have 3 pedal holes, allowing the 3 basic setups illustrated above (164mm, 200mm and 240mm). This is suitable for all types of cycle including bicycles, tricycles and exercise bikes.

4-hole Long Swing Crank for exercise bikes

The Swing Crank and the Crank Shortener each have 4 pedal holes, allowing 4 basic setups (164mm, 200mm, 240mm and 286mm). This is suitable for tricycles and exercise bikes. It is unsuitable for bicycles as there would be a danger of grounding your pedal as you lean to turn corners.

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

Please note

It is machined from high grade aluminium alloy and incorporate sealed bearings and stainless fasteners.

Prices and how to order

Click here for other ways to order your Pulse Swing Cranks.

Delivery

I aim to despatch these items within 7 days, but there may be delays at certain times of the year (eg. busy periods and holidays) - please contact Chris if you need to be certain. Click here for full delivery information.

7 day trial period

If you are unsure whether a Swing Crank will suit you or not, please order one anyway and try it out on your own bike. If it turns out to be unsuitable, just return it within 7 days, at your expense, for either an exchange or a refund.

Fitting instructions

standard

long

Important :  Your safety depends on the correct fitting of this item.  Seek professional help if necessary. Printed instructions are enclosed with every Swing Crank, or you can download copies here.

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Chris Bell,   HIGHPATH ENGINEERING Cornant, Cribyn, Lampeter, Ceredigion, SA48 7QW, Wales, UK

©  Chris Bell