Thread: Tire efficiency
View Single Post
Old 01-11-2020, 11:31 PM   #5 (permalink)
Vman455's Avatar
Join Date: Feb 2012
Location: Champaign, IL
Posts: 1,511

Little Red - retired - '05 Honda Civic EX
90 day: 49.03 mpg (US)

Pope Pious the Prius - '13 Toyota Prius Two
Team Toyota
90 day: 49.44 mpg (US)
Thanks: 153
Thanked 1,274 Times in 678 Posts
Originally Posted by CapriRacer View Post
Latex vs Butyl Rubber: Butyl rubbers are used where air retention is needed. In a car tire, that’s the innerliner – the innermost layer of rubber. In a bicycle tire, using an innerliner adds weight, so some bicycle tires are made of butyl throughout to reduce the weight – BUT – a racing tire (both bicycle and car racing tires) don’t need to hold air pressure for very long – just enough to finish the race – so they may not even use butyl at all.
Former bike racer here. Yep, a lot of people have switched to latex tubes for racing (and some for training); tubeless road bicycle wheels and tires have been a thing for 10+ years, but have been slow to catch on.

  Reply With Quote
The Following User Says Thank You to Vman455 For This Useful Post:
CapriRacer (01-12-2020)