April 18, 2024
Login
Home
News
Ride Maps
Blogs
Forums
Gear
Resource
VeloTV
Photos
Unanswered
Active Topics
Forums
Search
Forums
>
Road
>
Gear Advice
My non-aero gravel bike optimized for 38mm tires...
Last Post 02/24/2021 09:04 AM by christopher behrens. 18 Replies.
Sort:
Oldest First
Most Recent First
Prev
Next
You are not authorized to post a reply.
Page 2 of 2
<<
<
1
2
Author
Messages
Orange Crush
Posts:4499
02/23/2021 04:01 PM
Coefficient of drag is an interesting one. Is it the tire/rim combo that matters or is it the entire bike/rider combo. Perhaps the wider tires provide better airflow around Huck's massive chest, or is that beer/donut gut?!
Or maybe we need to look at downward force a bit more closely. The 2021 F1 generation has some key changes made to bottom airflow to limit downward force and slow cars down as tires got worn too fast in 2020. Which made for one hilarious race where Mercedes per usual was way ahead of the pack only to run out of rubber prematurely.
Ben - my kids are currently doing grade 12 advanced calculus. I am finding that the skills and knowledge are still there. But I am not a particularly good teacher, haha.
huckleberry
Posts:824
02/23/2021 04:58 PM
Ben -
Same rims on both. My Winter wheels - originally called Velomax Circuits, then I believe Easton bought them, to become Easton Circuit II's. Both are 20 years old, and still roll quite well(or do they) with relatively recent replacement bearings.
79pmooney
Posts:3180
02/23/2021 07:25 PM
Same rims? I wonder it they serve as a better "tail" of fairing for the wider tires. Sounds odd, but aerodynamicists have surprised by wind tunnel tests forever (and some are much smarter than I am). One thing that could be happening is the perhaps the Contis are close enough in width to the rims to allow the airflow to stay laminar. That appears to be an advantage but when laminar flow breaks off, the resulting disturbed airflow is often a wider swath whereas turbulent flow tends to wrap closer to a narrowing "tail" and leave as a narrower path of small, fast spirals; disturbing less overall air.
Now you could do an experiment - swap the tires. Maybe the bearings of one wheel are a little tight with the QR socked down or some other mechanical.
huckleberry
Posts:824
02/24/2021 09:04 AM
Already done it, Ben. Same result.
You are not authorized to post a reply.
Page 2 of 2
<<
<
1
2
Road
--Professional Racing
--The Dark Side
--Road Cycling
--Gear Advice
--New Cyclists
--The Coffee Shop
--Training Talk
--The Ride Spot
Off-Topic
--Off-Topic
Mountain Bike
--MTB - New Riders
--Gear Advice
--The Ride Spot
Cyclocross
--Racing
--Gear Advice
--Training
Commuting
--General Discussion
Forums
>
Road
>
Gear Advice
Active Forums 4.1
NOT LICENSED FOR PRODUCTION USE
www.activemodules.com
Latest Forum Posts
Flanders (and Roubaix)
posted in Professional Racing
Anyone have fun bike projects going?
posted in The Coffee Shop
so quiet
posted in The Coffee Shop
Hot Stove League
posted in Professional Racing
Rohan Dennis charged in death of his wife
posted in Professional Racing
compare Cycling icons with icons in other sports
posted in Off-Topic
Parc des Princes Veldrome
posted in Professional Racing
No articles match criteria.
Terms and Conditions
|
Privacy Policy
Copyright 2008-2013 by VeloNation LLC
About
Advertising
Mission
Contact
Jobs
Content
Pro Cycling News
General Cycling Articles
Training and Health
Gear Reviews
Community
Directory
Blogs
Photos
Forums
Groups
VeloTV