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-   -   Ask Scrod (https://www.bikeforums.net/singlespeed-fixed-gear/769181-ask-scrod.html)

hamfoh 01-23-12 06:39 PM

scrod do you know why my bike would make a rattling noise.

I have a PW cog on the 722, and I know they're loud but this is different. Like I'll hit some bumps and it sounds like I'm rattling change in my pocket. I've never heard a noise like this, so often, before. wabi wheels, omniums cranks, pw cog/lr, was thinking it might be the chainline?

ddeadserious 01-23-12 06:42 PM


Originally Posted by hamfoh (Post 13758178)
I noise they're loud but this is different.

http://i0.kym-cdn.com/photos/images/....thumbnail.jpg

hamfoh 01-23-12 06:46 PM

haha unintentional. IM TIRED OKAY

Scrodzilla 01-23-12 07:08 PM


Originally Posted by BigglyPuff (Post 13758115)
Is the Park BBT-19 the tool used to install/remove GXP bottom brackets for Sram Omniums? Just want to double check.

Yes sir.


Originally Posted by BigglyPuff (Post 13758115)
Also, on a scale of 1-10 (10 being absolutely necessary) how crucial is it to use a torque wrench when installing bottom brackets and cranks?

I've used a torque wrench but I've gotten to a point where I go by feel. GXP stuff is pretty easy because it bottoms out when it's tight enough.

Scrodzilla 01-23-12 07:10 PM


Originally Posted by hamfoh (Post 13758178)
scrod do you know why my bike would make a rattling noise.

I have a PW cog on the 722, and I know they're loud but this is different. Like I'll hit some bumps and it sounds like I'm rattling change in my pocket. I've never heard a noise like this, so often, before. wabi wheels, omniums cranks, pw cog/lr, was thinking it might be the chainline?

Chainline would be the least likely cause.

Is there a loose piece of metal inside your frame? My 725 had a small shard of aluminum inside it that drove me ****ing nuts until I finally took my whole bike apart and shook it out.

calv 01-23-12 10:09 PM

Scrod, are you sure those Vuelta cogs are 3/32"??

Same thing happened when I stuck that replacement on, and I was about to have my head explode.

I fixed the problem by putting the spare 1/8" kmc Z410 I was saving for another build. :lol:

I don't know why I didn't think to try that the first time!

Scrodzilla 01-23-12 10:12 PM

****...I think they're SUPPOSED to be 3/32". :lol:

hamfoh 01-23-12 11:08 PM

damn I didn't even think about that. time to undress her.

BigglyPuff 01-23-12 11:31 PM


Originally Posted by Scrodzilla (Post 13758295)
Yes sir.

I've used a torque wrench but I've gotten to a point where I go by feel. GXP stuff is pretty easy because it bottoms out when it's tight enough.

Thanks Scrod. Would you say the same about Protype BB's while we're on the topic? Do they bottom out when they get tight enough?

I'd like to avoid getting a TW-2 if I don't really need it.

hamfoh 01-23-12 11:53 PM


Originally Posted by hamfoh (Post 13759311)
damn I didn't even think about that. time to undress her.

mystery solved. was rolling it to my stand and bumped the saddle against the wall by accident. replicated it a few times and it's the stupid ass "ROLLS" tailplate thingamajig on the back of the saddle

calv 01-23-12 11:55 PM

Wow. That must suck to have found that out! haha

hamfoh 01-24-12 05:56 AM

it does. makes me really wish I had just paid more for the regal

scrod is there any reason why I shouldn't put origin8 110bcd cranks on my gfs 722? she says the reach is fine, but she's gotta slam her seatpost to reach the bottom of a pedal rotation and it seems a little stretched (though she says it is fine). I thought about grabbing the 155 or even the 140 since it seems some of them work with her SQTP bb. she doesn't need anything super stiff, she's 100ish lbs, but I worry because I know jack/**** about anything under 130

Scrodzilla 01-24-12 07:42 AM


Originally Posted by BigglyPuff (Post 13759393)
Thanks Scrod. Would you say the same about Protype BB's while we're on the topic? Do they bottom out when they get tight enough?

I'd like to avoid getting a TW-2 if I don't really need it.

The Protype - and other standard cartridge-style BBs - is a different story. You can do some damage to the BB or your frame (or both) by overtightening the cups and the square taper interface on your crankarms can be ruined by over-torquing.

I've seen a few decent used torque wrenches on eBay from time to time. Like I said, after using it a few times on certain parts, you'll know what the proper torque feels like and won't need to use it every time but if you plan on doing most - if not all - of the work on your bike yourself, it's definitely a good thing to have in your toolbox.

Scrodzilla 01-24-12 07:44 AM


Originally Posted by hamfoh (Post 13759755)
it does. makes me really wish I had just paid more for the regal

scrod is there any reason why I shouldn't put origin8 110bcd cranks on my gfs 722? she says the reach is fine, but she's gotta slam her seatpost to reach the bottom of a pedal rotation and it seems a little stretched (though she says it is fine). I thought about grabbing the 155 or even the 140 since it seems some of them work with her SQTP bb. she doesn't need anything super stiff, she's 100ish lbs, but I worry because I know jack/**** about anything under 130

If she's that small, you probably should have picked a different bike for her to begin with.

hamfoh 01-24-12 01:13 PM

well in hindsight I should've paid a little more and got a 650c wabi, but I was trying to cut cost and willing to roll the dice on the 722 at $150, not my best moment. but for now I'm trying to make what she has work. she's not tip toe riding or anything, but I'd like more options for her fit if they can be done reasonably cheap

homebrewk 01-24-12 03:01 PM


Originally Posted by homebrewk (Post 13752411)
In terms of components, where do you think I should start to drop weight on the CAAD10? (aside from wheels...)

Please?

himespau 01-24-12 03:26 PM

lose the gears?

/notscrodandonlyansweringbecausehehadn't

homebrewk 01-24-12 04:07 PM


Originally Posted by himespau (Post 13762394)
lose the gears?

http://www.reactiongifs.com/wp-conte...o/81526104.gif

yummygooey 01-24-12 04:12 PM

Just ride it.

dddavid 01-24-12 05:21 PM


Originally Posted by homebrewk (Post 13762621)

That episode aired before you were born. I always smile when you post gifs or pics referring to stuff older than you. But then I stop cause I realize, I'm old.

homebrewk 01-24-12 05:34 PM

Ok.

homebrewk 01-24-12 05:36 PM

Here is a gif from my time:

http://26.media.tumblr.com/tumblr_lp...ib8co1_500.gif

dddavid 01-24-12 05:40 PM

Hey sorry, wasn't meant as a put down. I like plenty of stuff from before my time.

And yeah, keep posting the Bundy gifs. Much better than whatever that one is.

homebrewk 01-24-12 07:05 PM


Originally Posted by dddavid (Post 13762999)
Hey sorry, wasn't meant as a put down.

no worries. I just like to have fun!

TejanoTrackie 01-24-12 07:07 PM

I love middle school humor.

homebrewk 01-24-12 07:23 PM

High school, actually.

http://cache.ohinternet.com/images/t...ollface_HD.png

Sherblock 01-24-12 07:23 PM

poop.

Scrodzilla 01-24-12 07:25 PM


Originally Posted by yummygooey (Post 13762657)
Just ride it.

This.

homebrewk 01-24-12 07:33 PM

Fine.

Dannihilator 01-24-12 07:39 PM

Should I take a day off from road riding?
Got quite a bit of miles in over the past few days.....


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