Continental Grand Prix 4000? - Page 2

I have never used these for 2 reasons-
1. price -here in the Antipodes, they are nearly $100 each !! although can import from UK at approx @$40
2. seen them on other riders' bikes....one guy came into LBS and bought a new pair, I said- "You have heaps of tread left, why are you replacing them?"...to which he replied, "check this out" and he removed the used ones,
fair dinkum the sidewalls looked like Trojans (USA brand- think Ansell, Durex, etc) he says "their sidewalls go bad too damn quick and these are now unrideable"

IMHO, Specialized All Condition and Armadillo are a good strong tyre and my first choice. Not all that heavy, don't listen to those who reckon their hard and slow. Also Vittoria Rubino are great.

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"...too old to be riding a bike..." my former workmates used to say. Screw them. I don't judge people for their lack of interest in exercise. So don't judge me.

Any word on the Michelin Krylion Carbons? Those are significantly cheaper and, although I haven't ridden them yet, my LBS is recommending them to me for my next tires because they are supposed to have a very supple ride and be very tough re: flats.

I have about 1000 miles on mine.

Just came back from a 300 mile tour. Riders on the tour semed to have alot of flats, but I had no problem. I was scared of flats since I could not bring CO2 cartridges with me on the plane and when I got there, they only had unthreaded cartridges and not the threaded cartridges I needed.

Only issue at first was they are set for 120 psi, my last tires were at 100 psi, so I needed to adjust to a slightly harder ride.

The 120 psi is the max pressure rating on the sidewall of the 4000s, not a recommendation. The box shows a recommended pressure of 110 psi, but I find they ride and grip sweet at 100-105 psi....at least for my 180 lbs.

Inflating 23mm tires to max pressure isn't even going to gain you any speed. I read recently that a study showed rolling resistance didn't really decrease above 105 psi, and going down all the way to 85 only increased rolling resistance an average of 2%.

The above sounds counter-intuitive. Suggest you try lower pressures, do some rollout or coast down experiments and see for yourself. The rock-hard ride may feel faster, but it really isn't....that's what I found anyway.

I have the Michelin Krylions on one pair of wheels - they definitley feel different to my Vittoria Rubinos, but they are very durable and the Vittorias sustain small cuts in the trad from glass etc - the Michelins look completely smooth. If you want no punctures & pretty low weight they are a great tire - the just don't feel as fast as or grippy the Vittorias - which are probably OK for racing & fast training. The Michelins are really a durable training tyre.

I have the Krylions and have only 1 flat in about 2000 miles of riding. I actually preferred the old Carbons for flat protection and durability as I never suffered a flat in over 3000 miles. Of course flats have a lot to do with the road conditions...

JS

Today I took my first ride on the 4000's, I must say, I'm totally impressed, by far the best Tires I've ridden so far, I could tell after the first few Pedal strokes that they are smooth and roll really well and they just got better the further I went....

Thanks for the feedback Guys, I love em!!

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05 Cannondale Six13 Team Replica.

07 Cannondale Caffeine 29'er