Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Long Distance Competition/Ultracycling, Randonneuring and Endurance Cycling Do you enjoy centuries, double centuries, brevets, randonnees, and 24-hour time trials? Share ride reports, and exchange training, equipment, and nutrition information specific to long distance cycling. This isn't for tours, this is for endurance events cycling

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-03-07, 09:11 AM   #1
hairytoes
Senior Member
Thread Starter
 
Join Date: Nov 2006
Bikes:
Posts: 467
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The magic formula for tyres

Well, there isn't one. But you know that.

I ride on 26" wheels, on an oddball bike that can take up to 2" tyres.

My 'fast' riding has been on 1.3" sport contacts (fast slicks at 85psi).
My current riding is on 1.75" Randonneur Cross (coarse treaded at 70psi).
There is about 1mph difference between them, for the same effort.

I really notice differences between them in three circumstances.

Coasting on the flat. The Sport contacts roll so easily it's almost like I'm still pedalling. The Randonneur Cross's start slowing immediately.

Rough tarmac and stones. If I hit a stone on the sport contacts, the bike skips and slides off the stone. With the Randonneurs, it just bumps a bit. On rough tarmac, the Sport contacts vibrate. the randonneurs rumble a bit.

Cornering at speed. The treaded tyres joggle sideways unpredictably. Quite disconcerting.

It's surprising how much more tiring it is to push along the fat treaded tyres. Not noticeable on one short ride, but over a hundred miles or so, or many successive 25mile rides, the treaded tyres do wear me down.
OTOH, the fatter tyres are far more comfortable, and I don't worry about the bike sliding on stony roads.

I'm going to try a compromise: 1.5" Panaracer Pasalas, with a slight amount of tread. Maybe *they* will hold the magic formula.
hairytoes is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 05:44 AM.