fixie handling Q

Jim Flom said:

I converted a c. 1980 Centurion touring bike into a fixie. In traffic,
sometimes I will slow down by putting (heavy) resistance against the pedals.

_Heavy_ resistance on the pedals is a Bad Thing. It is harmful to your
leg muscles. Google on "eccentric contraction" for details.

Quoted message said:

Is there a risk of my popping loose the BB? It's a Suntour crank and seems
to be a Sakae BB.

No issue with the bottom bracket, but some older bikes had "swaged"
cranks, where the crank spider was not part of the right arm, but was
swaged (rivetted) on. This type of crank isn't always reliable for
reversing-type loads.

I had one of these (a Sugino Maxy) fail this way once. It wasn't a
drastic failure, I was able to make it home, but there was some slippage
on the climbs, sorta like driving a car with a worn-out clutch.

Sheldon "Brakes Are For Stopping, Resistance Is For Slowing Down" Brown
+----------------------------------------------------+
| War is God's way of teaching Americans geography. |
| -Ambrose Bierce |
+----------------------------------------------------+
Harris Cyclery, West Newton, Massachusetts
Phone 617-244-9772 FAX 617-244-1041
http://harriscyclery.com
Hard-to-find parts shipped Worldwide
http://captainbike.com http://sheldonbrown.com

On Mon, 12 Jul 2004 17:12:10 GMT, "Jim Flom" <[email hidden]>

Quoted message said:

I converted a c. 1980 Centurion touring bike into a fixie. In traffic,
sometimes I will slow down by putting (heavy) resistance against the pedals.
Is there a risk of my popping loose the BB? It's a Suntour crank and seems
to be a Sakae BB.

If the parts are sound, there is no risk for the BB. If they're not,
the fact that it's a fixie, and that you legbrake, still won't make
them fail any faster.
--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.