Please note that the minimum required thread contact between crank arm and sprocket/freewheel is 7mm, and a 1.37" sprocket/freewheel with maximum internal thread diameter 33.80mm (NOT 1.375") must be used. Failure to adhere to this instruction will damage the cranks threads and this is not covered under warranty.
Please note: due to the manufacturing processes used for these cranks, there may be small variations in concentricity between the freewheel and bottom bracket interfaces. This can lead to a certain amount of run out for any freewheel, sprocket or adaptor installed on the crank arm. While this isn't an issue on trials bikes, for applications requiring much higher tolerances we cannot guarantee they will be suitable. Please get in touch if you have any questions.
There are currently no questions relating to this product.
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TartyBikes Ltd, Units 3-4, Club Street, Bamber Bridge, Preston, PR5 6FN
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A little heavy
Posted by muku
Weight: 387g The real weight is about 412g I think there are some individual differences.
Reply from TartyBikes
Hi Osamu
We've double-checked the weights of the cranks we currently have in stock and you are correct, they have increased in weight slightly. We get 410g average. Sometimes there are inconsistencies with manufacture that add or remove a few grams from a product, but generally this difference is no more than about 5% as described in our Terms and Conditions regarding Accuracy of Information. We've updated the product to reflect the current weight. Thanks for letting us know!