Adjustable crank

REFERENCE 4353.2 EAN13

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Pedals with adjustable crank radius for ergometers and exercise bikes. The Vario crank is a length-adjustable pedal crank for bicycle ergometers and home trainers. Patients with reduced flexion in their hip and knee joints can adjust the crank length to determine their personal flexion angle, thus enabling earlier mobilization.

Available from stock

CHF 329.00

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Product description

Bicycle ergometers and home trainers are usually equipped with pedal arms that are approx. 170 mm long. Pedaling with these pedal cranks requires certain flexion and extension angles of the knee and hip joints (approx. 110-120° knee flexion). However, if the patient is unable to carry out this range of movement due to an injury, surgery or degenerative joint changes, or if these high flexion angles are not useful from a therapeutic point of view, very useful ergometer training can be made possible with shortened pedal arms and thus reduced flexion angles.

The adjustment mechanism of the Vario crank allows the crank length to be infinitely adjusted from 30 - 170 mm. By reducing the pedaling movement, the required amount of flexion and extension movement is greatly reduced and the joint is significantly relieved of stress. The knee flexion required for pedaling can be reduced to approximately 65°. The Vario crank enables many patients to train with the ergometer.

to support joint mobilization
for cartilage training for osteoarthritis
in the rehabilitation of leg injuries
for training the cardiovascular system
Continuous adjustment of the padal arm length from 30 - 170 mm
easy handling of the length adjustment
Robust design for professional use in rehabilitation
Scale for reproducible adjustment
Using existing pedals
Suitable for all standard bicycle ergometers and exercise bikes
(Square axis: please specify ergometer type when ordering)
Patent protected version

Scope of delivery:

Pedal crank set (left + right) with length scale
Axle adapter for standardized square axle with internal thread (for square axis with set screw on request)
Quick release screws
Mounting screw, information sign
Operating and assembly instructions

(Pedals not included - a pedal removal device is required to dismantle the old pedal arms)

Recommendation: Before ordering, we recommend clarifying whether the item fits the corresponding device (item is excluded from the right of return)

Note: Warranty claims are void if changes, modifications or repairs to the device are carried out independently or by unauthorized persons. Only work carried out by an assembly team or service partner authorized by us remains covered by the guarantee.