Unicyclist Community

Go Back   Unicyclist Community > Unicycling Discussion > General Unicycling Discussions

Thread Tools Search this Thread Rate Thread Display Modes
Old 2017-01-11, 01:37 AM   #1
Thumper uni
Join Date: Aug 2016
Location: Perth Australia
Age: 52
Posts: 91
Camber tips

I have been riding for a few months now and have been leaning my body into the path camber but it feels strange , should I be leaning my uni or a combination of both . Thanks David
Thumper uni is offline   Reply With Quote
Old 2017-01-11, 04:51 AM   #2
North Shore ridin'
johnfoss's Avatar
Join Date: Apr 2002
Location: El Dorado Hills, CA
Age: 56
Posts: 16,771
I think a certain amount of body lean is always required to compensate for camber or other tilts to the riding surface. The uni always tries to go downhill, and you have to maintain an off-center position to keep the wheel pointed back toward the road.

Some tires are much better with camber than others. It's not a hard-and-fast rule, but rounder tires generally do better than squarish ones.
John Foss

"The miracle is this: the more we share, the more we have." -- Leonard Nimoy
johnfoss is offline   Reply With Quote
Old 2017-01-11, 06:32 AM   #3
Join Date: Jun 2014
Location: Murwillumbah, NSW, Australia
Age: 58
Posts: 837
Originally Posted by Thumper uni View Post
I have been riding for a few months now and have been leaning my body into the path camber but it feels strange , should I be leaning my uni or a combination of both .
The body lean and uni lean are related. The centre of gravity must remain above the contact point on the road, so leaning the body goes hand in hand with the uni leaning the opposite way.

It isn't as simple as the uni rolling down a side slope. A tyre tilted to the road surface causes sideways forces as the tread is forced to run straight across the contact patch, misaligned with the circle the rest of the tyre is running. These forces act both in front of and behind the point where the steering axis is projected onto the road. Unfortunately they don't cancel out and result in the uni being forced to turn down the slope.

Leaning forwards changes the geometry of the steering axis and tyre contact patch helping to overcome the problem even if you don't actually lean your body into the camber.

You can also push hard with your inner thigh against the front half of the saddle to resist the turning force.

Tyres with a relatively rigid carcass are the worst because the sideways force is proportional to the resistance to flexing.

For example, the Maxxis Hookworm in any size larger than 20 inch is terrible. The Maxxis DTH (24 and 26 inch) is far less susceptible. Maxxis Torch (29 inch) is also quite good.

The bigger the tyre diameter and width the worse the camber problem. Low inflation pressure make a longer and wider contact patch, exacerbating the problem.
Triton 36" + 29" | KH 29" | KH 26" | Nimbus eSport Race 24" | Torker LX 24" | Qu-Ax Luxus 20" | Qu-Ax Profi 20" | KH Onza 19"
OneTrackMind is offline   Reply With Quote

camber, tips

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Road camber solutions janvanhulzen General Unicycling Discussions 12 2016-10-25 08:24 PM
Century, plus 10, and camber question MuniAddict General Unicycling Discussions 38 2013-02-01 08:24 PM
Road Uni - Handling Excess Road Camber IUni General Unicycling Discussions 28 2012-03-02 03:08 AM
Road Camber problem TattooedBandit General Unicycling Discussions 15 2008-02-24 07:55 PM
Road camber effect and tire choice - DMR Moto Digger andy General Unicycling Discussions 1 2006-02-27 03:03 PM

All times are GMT. The time now is 03:07 AM.

Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright © 2001-2016 Gilby
Page generated in 0.06472 seconds with 12 queries