Sidmouth Posted October 19, 2015 Posted October 19, 2015 Back in the day 20c was the recommend tyre, then came 23c, damn those things looked big, now its all 25c, anyone ride with 28c, Im over 90KG so I'm thinking of giving them a go, more air and rubber it has to be more comfortable.
_freak_ Posted October 19, 2015 Posted October 19, 2015 Im in 28c Gator skins commuting to work, 75km a dayI think its worth it
Hackster Posted October 19, 2015 Posted October 19, 2015 Got them on my old Cannondale CAAD3. I weight about 85 kg. The 28c's seem to make the bike less twitchy and more comfortable. Only downside is that the tyres don't fit through the brake calipers when fully inflated so changing tyres is very slightly more complicated.
LOOK695 Posted October 19, 2015 Posted October 19, 2015 Make sure they fit your frame. I am using 25mm on wide rims and I can comfortably ride with 6 bar and I am over 90kg
Eddy Gordo Posted October 20, 2015 Posted October 20, 2015 I have 23c on my roadie and been contemplating going 25 or 28c as well. What are the loses? I know it should be more comfortable, but wont it also be more draggy?
raptor-22 Posted October 20, 2015 Posted October 20, 2015 no difference from 23c to 25C. But with 28C theres a noticable difference in tyre noise and drag. More noise is efficiency gone. I'm thinking 25c on a wide rim is the perfect compromise.Also, not much difference between a Michelin PRO4 23c and a Contin GP4000 25C. The michelin is already tall with a very firm yet well damped feel. Michelin PRO 4 25C could be the perfect tyre
Capricorn Posted October 20, 2015 Posted October 20, 2015 I have 23c on my roadie and been contemplating going 25 or 28c as well. What are the loses? I know it should be more comfortable, but wont it also be more draggy?other than very slightly better comfort, I could not perceive a difference going from 23c to 25c. Maybe someone with a power meter can tell us what the numbers say? In a sport of marginal gains (at the top end), the extra bit of comfort counts as a physiological benefit.
Eddy Gordo Posted October 20, 2015 Posted October 20, 2015 Ok, so my thoughts about going 25c are about right. 28c might just be too thick. Not too worried about the power etc, but more about keeping the momentum on climbs.Â
raptor-22 Posted October 20, 2015 Posted October 20, 2015 Ok, so my thoughts about going 25c are about right. 28c might just be too thick. Not too worried about the power etc, but more about keeping the momentum on climbs.   28C will require a frame with more clearance anyway.They're greatfor those all road bikes but on a race bike they just remove too much feel through the bars and at the low pressure they're sold as practical for use the tyres just feel to squirrely. Those that don't are too heavy.  thats my 2p
'Dale Posted October 20, 2015 Posted October 20, 2015 I have 23c on my roadie and been contemplating going 25 or 28c as well. What are the loses? I know it should be more comfortable, but wont it also be more draggy?Just a bit more pricey
brumby Posted October 20, 2015 Posted October 20, 2015 28c is amazing to ride with. Rolls faster,ride is way softer and latest research points to them being more aerodynamic due to the way the wind is directed over the wheel/rim.Slight weight increase is the only downside.
eddy Posted October 20, 2015 Posted October 20, 2015 28C will require a frame with more clearance anyway.They're greatfor those all road bikes I have been running 25c since 2010 on all my road bikes that can take them, and have enjoyed the ride they give without noticing any downside. I run 28c GP4000 II tyres on my CX bike when I am planning on doing mostly road riding. They are fine for that but I would be unlikely to want to run them on a road bike full time.
WIPEOUT 1000 Posted October 20, 2015 Posted October 20, 2015 My slow migration from to ever wider tyres stopped at 25c, my road frames simply will not allow anything larger. However, I weigh 90kg's and they seem to work well. I have not had a pinch flat in years.
Honkdonk Posted October 20, 2015 Posted October 20, 2015 I just put 25c Conti GP's on my AC 420 rims. Feels a lot smoother than the Vittoria 23c's I had on there initially. Interesting perspective on why 25c is a faster tyre over a 23 - its seems mainly to do with the contact patch on the road surface that makes the difference
Recommended Posts
Archived
This topic is now archived and is closed to further replies.