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they are not slow. i have a race team on the RBCC tyres. riders keep on winning.
there wont be much in it between the pro ones and the formula pro IRC tyres tyres. i suspect the pro one will have slightly lower Crr but it could be the other way around. there is nothing slower than a flat tubeless tyre. On a bike like your hippy this is the danger witht the pro ones. they are a race tyre and a mean a road racing tyre not a loaded trip accross a continent race tyre. there is always a trade off. for ultimate pace use the formula pro light (more like the pro one but with better durability) but i would not use these for a continental race either.
i ride a 18kg bike they tyres work on this and those mileages were done on this bike mostly through winter.
weight of a tubeless tyre is roughtly equivelent to non tubeless tyre and tube there is not alot init.
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cycleclinic
Anyone done Crr measurements on Fusion X-Guard or RBCC (what's RBCC?).
Ah, this is RBCC "rice bran ceramic compound" dafuq?!
http://www.velodistribution.co.uk/product/irc-formula-pro-rbcc-tubeless-road-tyres-28mm/
25mm tyre 275g (20g heavier than Pro One, 50g heavier than GP4000Sii)
28mm tyre 320g (heeeeeaaaavy!)
RRP £50 (spendy)
No point using long lasting tyres if they're slow though. I could just ride Duranos or Marathons for 20,000k. I assume Pro Ones are faster than RBCC tyres? The rolling resistance site has only tested an XC IRC tyre.
I'm 88.8kg. Bike is ~18kg. I had no issues with tubes last year.