View Full Version : BB help
FlatFender
04-12-2007, 01:27 PM
So, I just recieved my Adamant A1 in the mail, and they guy I bought it from threw in a TruVativ Hussefelt Crankset and a Truvativ BB. Heres the deal, Its a truvativ Giga Pipe 68x113. When I install the BB to Truvativ's specs, The 22t chainring catches on the frame. I obviously need to move the crank arm outward. when I space the BB out about 5mm, the cranks do not rub, and the chainline is good. SOOOO.... Should I buy BB with a 123mm spindle?
Im confused.
thanks guys
Luke
psyber_0ptix
04-12-2007, 02:34 PM
its easier to space in than out.
why not go 68x128mm. if its of put some washers between the crank and chainring. if you go 123 and its still too 'short' that would suck, and your stuck
I would also opt for the 128mm. I thought about what would fit my Coust frame, and in the end I decided not to chance it and just get the 128.
FlatFender
04-12-2007, 08:58 PM
Awesome. Ill have to find a 68x128 ISIS BB... Any ideas?
Acolyte
04-12-2007, 09:46 PM
Awesome. Ill have to find a 68x128 ISIS BB... Any ideas?
http://www.observedtrials.net/vb/showthread.php?t=22427
The 3 retailers up top should all be able to help you out, unless you're not in the US.
Webcyclery was awesome for me, shipped to Australia very quickly.
FlatFender
04-12-2007, 11:02 PM
awesome, Looks like Midwest has what I need.
Ill run to the LBS tomorrow and see what they can do. if not, Ill go w/ midwest.
waffelstomper
04-13-2007, 11:19 AM
I just got a gigapipe from universal cycles. Good price. It has a spacer on it that needs to go on the chainring side and a rubber O-ring for the non-drive side. If you don't already have one there or have them swapped, then I bet that's the problem.
psyber_0ptix
04-13-2007, 11:24 AM
i dont have a rubber o-ring on the non drive side...
i'm confused?
http://img.photobucket.com/albums/v283/psyber_0ptix/P1020631.jpg
bidaci
04-13-2007, 11:48 AM
Not all BB's use an O-ring. Truvativ does on some of theirs. Their non drive side cup has a collar that the o-ring is pinched by.
http://www.webcyclery.com/image.php?productid=16533
(http://www.webcyclery.com/image.php?productid=16533)
waffelstomper
04-14-2007, 02:29 AM
Yeah, I don't know much about this, but I would think that the spacer on the drive side would move the chainring out enough that it won't contact the frame. The O-ring just keeps dirt out of the threads since the BBcup doesn't actually tighten down against the frame, it seats against the body of the bottom bracket itsself. The O-ring is just filler for the gap on the non-drive side. I have an extra spacer from my old giga pipe if you want it.
EDIT: It's the same size... 68x113.
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