To achieve a good result testing the CDRIVE™ system, please pay careful attention to the following
FRAME DESIGN
- The frame must have an elevated chain stay or separated stays joined by the rear axle bolt.
- Stiffness in the rear stays and bottom bracket shell must be sufficient to avoid flexing which can cause misalignment under pedaling load.
- Chain stay length is critical; the belt length cannot be altered. Allow for adjustment of + and - 10 mm to install and tension belt.
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- A precise belt tensioning system must be included in the frame design. It is recommended that the rear sprocket centers (dropouts) be adjustable fore and aft in order to install the belt and to allow for its proper tensioning. BMX style chain tensioning devices are satisfactory.
ALIGNMENT
Accurate alignment of all components is crucial. This system requires closer tolerances than commonly employed with a conventional chain drive set-up. The frame needs to be built precisely and carefully checked prior to installation.
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BELT TENSION:
Adequate tensioning of the belt is critical to the success of the CDRIVE™ system. Belt tension should be as tight as possible without over stressing the axle bearings. Once correctly adjusted during installation, no further tension adjustment is necessary.
Note: If racheting occurs (jumping sprocket teeth when belt is under load tension) it is because initial belt tension is insufficient. This can shorten belt service life and therefore must be avoided.
MAINTENANCE
Avoid build up of mud and grit on the sprockets which can cause wear to the belt and sprockets. Clean if necessary with water and brush.
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