Bike Forums - Ask Scrod

Hey Scrod,

Why would a bottom bracket unthread/come loose while riding?

My heart stopped a few weeks back when it happened on my leader, but luckily the threads on everything are okay. The drive side just seemed to have come unthreaded a little. I thought maybe I used too much grease, so I cleaned some off and it seems okay now.

Just want to satisfy my curiosity, I tried looking it up but no definitive answers.

Scrodzilla

02-18-13 06:28 PM

I've never had it happen to me but the ones I've seen were most likely undertorqued when installed and have had way too much grease on the threads. All you need is a really thin coating.

BigglyPuff

02-18-13 07:48 PM

I'm guilty of over-greasing everything. Really got to tone it down, haha.

Torque shouldn't be a problem since I'm using a torque wrench. But I've been slobbing on grease left and right, gonna stop doing that.

FakeFuji

02-18-13 07:51 PM

It's okay, I'm an over greaser too

chicagoSS

02-18-13 08:01 PM

Quote:

Originally Posted by FakeFuji (Post 15289419)

It's okay, I'm an over greaser too

You guys should start a support group

GENESTARWIND

02-18-13 08:50 PM

or less fapping while working on your bikes.

gregjones

02-18-13 08:54 PM

Quote:

Originally Posted by GENESTARWIND (Post 15289632)

or less fapping while working on your bikes.

Another trip to the urban dictionary....cool, fapping is an onomatopoeia.:p

GENESTARWIND

02-18-13 08:58 PM

Ha a trip over to wikipedia.
never new what onomatopoeia ment. infact ive never seen the word used before.

GENESTARWIND

02-18-13 09:06 PM

scrod i need a black 52 tooth 130bcd chainring, non ramped to replace my biopace. halp!

im reguards to my question earlier about gear sizing. im going to stick with 52/19

Nagrom_

02-18-13 09:18 PM

Quote:

Originally Posted by GENESTARWIND (Post 15289665)

Ha a trip over to wikipedia.
never new what onomatopoeia ment. infact ive never seen the word used before.

3rd grade was hard.

Scrodzilla

02-18-13 09:31 PM

lol @ "infact".

BigglyPuff

02-18-13 09:57 PM

Hate to pile it on, but don't forget the "new" for "knew"

Nagrom_

02-18-13 10:13 PM

I think he ment that.

wait.

Scrodzilla

02-18-13 10:20 PM

Dude's wasted.

Nagrom_

02-18-13 10:24 PM

Quote:

Originally Posted by Scrodzilla (Post 15289948)

Dude's wasted.

I just laughed pretty hard.

gregjones

02-18-13 10:24 PM

Hukd on foniks wurks.

blondieyo

02-18-13 11:36 PM

Quote:

Originally Posted by Scrodzilla (Post 15286534)

Unless you have your cog installed backward on the hub, you shouldn't be having that trouble at all.

As far as the crank clearance issue, that's common for Omniums. Unless it's actually making contact with your frame, don't worry about it.

The cogs on the right way so I guess maybe I must just be exaggerating a bit? It's just quite a noisy chain line, I might have to look at centring my chainring and stuff and wearing it all in a bit. Cheers Scrod!

FixedDriveJess

02-19-13 12:15 AM

Light, stiff road drops for non brake use that have 26 clamp. Any ideas? And no ergo drops if possible, those things is butt ugly.

spRICE

02-19-13 01:51 AM

Hey Scrod why do you never multi-quote messages when you reply?

Scrodzilla

02-19-13 07:28 AM

Quote:

Originally Posted by FixedDriveJess (Post 15290218)

Light, stiff road drops for non brake use that have 26 clamp. Any ideas? And no ergo drops if possible, those things is butt ugly.

http://www.retro-gression.com/produc...ream-handlebar

or

http://www.retro-gression.com/produc...rson-handlebar