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14 Mar

ENVE rims - warning

Posted by Bold Apps

The bead hooks on the ENVE SES road rims (rim or disc brake) are simply not conforming to any standard. The bead hook is not properly shaped and as a result can cut into tyre just above the bead. It won't happen to every tyre but how much contact the tyre has with the "sharp" edge will be important as will the type of tyre. That means tyre pressure is important (too low and the risk of cutting should increases) as is the amount of tyre deformation caused by cornering. Tyres with reinforcement at the bead will be less prone to cutting as would low TPI tyres. Let me emphaise that all tyres are susceptible to damage though. The rim bead hook design is at fault not the tyre. No tyre is actually safe to use on these rims due to the increased risk of failure. 

In my opinion no tyre should be used with these rims. I noticed this 18 months ago but I refrained from publishing due to lack of proof (sample size too small). Some warranties for IRC tyres on these rims have cropped up. 

If you suffer a tyre failure on an ENVE rim I therefore cannot consider a warranty issue. Your tyre maybe replaced as good will but in my opinion you should be returning your wheels to ENVE for a refund. 

I think there are issues with DT Swiss road rims too but that is due to the size of the bead hook (too small) and the wrong orientation. Tyres with reinforcement at the bead are best used.



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