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I need a fresh set of gumwalls but i'd avoided veloflex because of the warning on the box you can't run them with carbon rims
Just got some brand new GP4000SII-- fresh from the factory. Sticker on the box says "Please observe the enclosed mounting instructions for carbon rims and tyre-rim combinations"!!
And what does it say?
Warning notice on the use of Continental clincher and folding tyres with carbon clincher rims
Carbon is a fantastic material for lightweight products. Its processing is, however, highly time-consuming. In addition, the use of carbon in real-life riding entails limits with regard to the brake performance (see above). In the case of carbon clincher rims there is the risk that the tyre edge is slit open by the sharp-edged design of the rim flange.
8 Therefore, before mounting, check that the hook of the rim is round. Take the aluminium hook edge type rim of a renowned manufacturer as reference. Move your finger carefully along both flanges of your wheels. You should not feel any extremely rough or sharp-edged areas. Replace critical rims to be on the safe side. If you are in doubt, seek an experienced bicycle dealer for advice
The Shimano RS10's that came with the bike. Haven't decided which way I'm going with a nicer set of wheels yet - tubs vs clinchers, carbon vs alu etc.