Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


What is the difference between 11r, 10r, 8r, etc. carbon used on different Specialize
#1
What is the difference between 11r, 10r, 8r, etc. carbon used on different Specialized bikes.
  Reply
#2
Jumping into an old post. I was this week googling for an answer to the same question, so here is what I have understood from Specialized website. Perhaps this will help for some other fellow google-cyclists in the future Smile

R level = "level of modulus of the carbon fibers". R value refers to the "stiffness of individual fibers within the carbon matrix", so it the higher R the stiffer and more efficient is the particular carbon material. So, when the level is higher (R11 > R8), they can utilize less material in order to create a Specialized bike frame of the same or higher stiffness. Compared to the frames with less modulus carbon fibers.

Bottom line
Each level or R of the carbon frame takes off 100 to 150, to even 200 grams of weight (11R lighter than 10R or 8R) and at the same time the ride will be either a little bit stiffer or more vibration-absorbing, depending on the type of bike (Tarmac/Roubaix).
  Reply


Forum Jump:

[-]
10 Latest Posts
Hello everyone
Today 09:17 AM
Post-Ride Nutrition
Yesterday 01:16 PM
find a cycling buddy?
06-20-2025 03:17 PM
First long distance ride..
06-19-2025 09:06 PM
How often check or change mechanical dis...
06-19-2025 08:59 PM
Pre Ride Food Intake
06-19-2025 07:22 AM
New Member
06-19-2025 07:20 AM
Attack // Force tire style narrow front ...
06-19-2025 12:27 AM
Pros & Cons of presta valve vs schrader ...
06-19-2025 12:16 AM
1987 Tommaso Alloy lugged frame
06-18-2025 09:05 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Flowrider
17 posts
no avatar 2. GirishH
16 posts
no avatar 3. Criminal
16 posts
no avatar 4. rydabent
15 posts
no avatar 5. SPINMAN
13 posts