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Is the CDRIVE™ belt as strong as a chain?
The high grade reinforced CDRIVE™ belt is stronger than any bicycle chain; it will not stretch nor break on a bicycle.
Isn't a belt drive less efficient than a chain?
With the high precision close tolerance engineering of the CDRIVE™ system, power transfer is 98% efficient; similar to that of a conventional roller chain.
Does the belt wear out quicker than a chain?
Under normal operating conditions, the CDRIVE™ belt will last from two to ten times longer than any bicycle chain, and could be even more.
Does the belt skip?
The CDRIVE™ system will not skip under any normal pedaling pressure. In extreme circumstances, a strong rider might be able to skip the belt. We offer a pulley guide to eliminate this possibility.
Won't the belt need regular tensioning to prevent it from falling off or skipping?
Once tensioned during installation at the factory, the CDRIVE™ belt will not need any further adjustment.
What is the weight saving compared to a chain system?
The combined weight of chain and sprockets are typically more than twice that of the CDRIVE™ system which weighs only 300 grams or less.
How does CDRIVETM compare to competing systems. ?
The CDRIVETM belt system offers same level of precision engineering and durability, but at a price that is more suited to mass production at popular price points. CDrive may not be appropriate for off-road and extreme.
What is the belt made of?
The belts are made under very carefully controlled conditions using a combination of synthetic materials that include nitrile rubber and special glass fiber reinforcing tensile members.
What are the front and rear sprockets made of?
The sprockets are precision moulded to very high tolerance using a special compound of modern composite reinforced materials that are light, stiff and very tough. The rear drive sprocket includes a hardened stainless steel insert.
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Can the CDRIVE™ belt system work on any bike?
The system is not recommended for off road bikes where conditions could be very muddy, nor for road bikes requiring derailleur gear systems. Otherwise, it's suitable for any kind of bicycle that has been designed to use the system.
What makes CDRIVE™ different than other belt drive systems?
This is a proven system using a specially developed belt and sprocket interface made to extremely close tolerance specifications.
Can any 8mm pitch sprockets be used with the belt?
No, the sprocket and belt combination of the CDRIVE™ system must be used together to achieve a satisfactory result.
What kind of gearing systems can the CDRIVE™ belt system work with?
Shimano, Sturmey Archer, SRAM all make internal gear hubs that can be used with the system. It cannot be used with the Sturmey Archer 8 speed large sprocket gears. It can also be used with single speed gear hubs (Shimano 9 spline style and coaster brake).
What is the production lead time for OEM orders?
This is currently 90 days; the belt and sprockets are shipped FOB Los Angeles USA.
Is there a charge for factory samples?
There is a charge for parts and shipping. We will contact you to discuss charges once you submit a sample request.
Who is using the CDRIVETM system?
Several large OEM customers are evaluating CDRIVETM and some European manufacturers have already committed for their 2011 models.
Does the belt need any lubrication or maintenance?
No, the belt will never need lubrication. The only maintenance required might be to occasionally wash off any dirt that might accumulate on the sprockets with a brush and water.
Will the belt and sprockets stand up to UV and Ozone exposure from the elements
The compounds used in the CDRIVE system have a good resistance and should not be affected under normal conditions, even if the belts will be outside under direct sunlight or rain.
Temperatures ranging from -20°C to +50°C can be tolerated. In cases of heavy contamination (i.e. sand, mud, etc.), it is advisable to clean the drive components (sprockcets and belt) using water and a light brush. Solvents like gasoline and petroleum must be avoided. |