I got fed up with my keys putting scratches on the bar between the clamps and had always fancied some kind of carbon-fibre protector, but I couldn't find one. So I bought 0.5 metre of 28.5mm internal diameter CF tube from here
http://www.carbonology.com/carbon-tube-over-12mm-od-285mm-id-313mm-od-c-64_76_100.html
I cut a bit to length and cut out a 10mm strip so that it would snap over the bar. At £22, it's a bit expensive, but I have a use for the left over tube
I reckon you can get eight protectors out of a 0.5 metre tube, so if a group get together, these can be done for £3 a piece.
http://www.carbonology.com/carbon-tube-over-12mm-od-285mm-id-313mm-od-c-64_76_100.html
I cut a bit to length and cut out a 10mm strip so that it would snap over the bar. At £22, it's a bit expensive, but I have a use for the left over tube
I reckon you can get eight protectors out of a 0.5 metre tube, so if a group get together, these can be done for £3 a piece.