# Just upgraded BB and chainring. Immediate improvement!
**URL:** https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632
**Category:** Bikes
**Created:** [June 22, 2008, 4:18pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632 "2008-06-22T16:18:03Z")
**Posts on this page:** 19
**Page:** 1
### Author:  [@room203](https://tarck.cc/u/room203)
#### Post date: [June 22, 2008, 4:18pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/1 "2008-06-22T16:18:03Z")
If you are running an 1/8" cog in back and 1/8" chain on a 3/32" chainring on the inside of a road double like i was, you really should spend the money and get a shorter bottom bracket to get a straight chainline and 1/8" chainring.
Its like night and day. Everything is so much easier and it feels like no power is being wasted.
I still have some clickity clacking i need to remedy though. I should just get a new chain and see if that helps. After seeing what happened to this white chain I don’t think its a good idea to run a colored chain since the paint or powder coat disintegrates and basically becomes the same as dirt in there.
---
### Author:  [@catling](https://tarck.cc/u/catling)
#### Post date: [June 22, 2008, 4:33pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/2 "2008-06-22T16:33:20Z")
i run 1/8 chain ring and cog with 3/32 chain
butter smooth
---
### Author:  [@tya](https://tarck.cc/u/tya)
#### Post date: [June 22, 2008, 6:31pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/3 "2008-06-22T18:31:01Z")
Straight chainline is key, but I haven’t had any problems running a 1/8" rear cog and chain on a 9-speed front chainring. I highly doubt it’d “waste power”. But best to match everything, of course.
---
### Author:  [@dutret](https://tarck.cc/u/dutret)
#### Post date: [June 22, 2008, 6:33pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/4 "2008-06-22T18:33:45Z")
[quote=“room203”]
Its like night and day. Everything is so much easier and it feels like no power is being wasted. [/quote]
feels being the important word in the sentence
---
### Author:  [@barba](https://tarck.cc/u/barba)
#### Post date: [June 22, 2008, 7:02pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/5 "2008-06-22T19:02:01Z")
[quote=“zelah”]i run 1/8 chain ring and cog with 3/32 chain
butter smooth[/quote]
The chain actually fits over the teeth?
---
### Author:  [@room203](https://tarck.cc/u/room203)
#### Post date: [June 22, 2008, 7:47pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/6 "2008-06-22T19:47:40Z")
heh are you seriously asking that?
i just wasted a minute seeing if a 3/32 chain would fit on an 1/8 ring, just to be sure…
the verdict:
no.
he’s being facetious. or has bizzaro components.
---
### Author:  [@1percenttruck](https://tarck.cc/u/1percenttruck)
#### Post date: [June 22, 2008, 8:19pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/7 "2008-06-22T20:19:31Z")
Nah dude. Me and Zelah spent the other night filing down his chain ring and adding in some secret lube (read: semen) that has not only allowed a 3/32 chain to be silky smooth on his tarck drivetrain, but has also inadvertently created a perpetual motion machine. Now we have all our group rides on the freeway and drag race rice rockets for a living.
---
### Author:  [@Tbirdbassist](https://tarck.cc/u/Tbirdbassist)
#### Post date: [June 23, 2008, 6:49am UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/8 "2008-06-23T06:49:34Z")
I run a 1/8th chainring+chain with a 3/32 cog on one side of my hub with no probs when I use it. Smooth and silent.
---
### Author:  [@tya](https://tarck.cc/u/tya)
#### Post date: [June 23, 2008, 11:07am UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/9 "2008-06-23T11:07:00Z")
There are 3/32 and then there are 3/32 chains… I mean, chains for a 5-speed cassette and chains for a 9-speed cassette are sold as 3/32, and obviously they are different widths. Probably also different 1/8 cogs and chainrings are slightly different in thickness, so I guess a wide “3/32” chain could fit on a thin “1/8” cog. I’d guess its rare though, if even possible.
---
### Author:  [@Timarchylime](https://tarck.cc/u/Timarchylime)
#### Post date: [June 23, 2008, 11:43am UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/10 "2008-06-23T11:43:54Z")
5spd is actually 3/32".
6spd to 8spd all use the same chain which is a tad narrower.
9, 10, 11spd are all different and are getting narrower.
I don’t think and self respecting manufacturer would make an 1/8" cog thin enough to fit any 3/32" chain.
---
### Author:  [@barba](https://tarck.cc/u/barba)
#### Post date: [June 23, 2008, 1:32pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/11 "2008-06-23T13:32:54Z")
> [@tya](#):
>
> There are 3/32 and then there are 3/32 chains… I mean, chains for a 5-speed cassette and chains for a 9-speed cassette are sold as 3/32, and obviously they are different widths. Probably also different 1/8 cogs and chainrings are slightly different in thickness, so I guess a wide “3/32” chain could fit on a thin “1/8” cog. I’d guess its rare though, if even possible.
3/32" is the measurement of the internal width of the chain. Up until 9 speed I think they just made the external width narrower (thinner plates and rivets). They are still 3/32" chains. 10 speed has a narrower inner width, and god knows what the new Campy 11 speed chains will look like.
---
### Author:  [@blickblocks](https://tarck.cc/u/blickblocks)
#### Post date: [June 23, 2008, 1:59pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/12 "2008-06-23T13:59:15Z")
> [@tya](#):
>
> There are 3/32 and then there are 3/32 chains… I mean, chains for a 5-speed cassette and chains for a 9-speed cassette are sold as 3/32, and obviously they are different widths. Probably also different 1/8 cogs and chainrings are slightly different in thickness, so I guess a wide “3/32” chain could fit on a thin “1/8” cog. I’d guess its rare though, if even possible.
lol
How in the world are you coming up with this?
---
### Author:  [@room203](https://tarck.cc/u/room203)
#### Post date: [June 23, 2008, 4:35pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/13 "2008-06-23T16:35:27Z")
> [@Tbirdbassist](#):
>
> I run a 1/8th chainring+chain with a 3/32 cog on one side of my hub with no probs when I use it. Smooth and silent.
when i first built my bike and was running the 3/32 ring up front it was also smooth and silent for a couple days and then i lubed it and a couple days later i started hearing noise from the cog. now that i have all 1/8 stuff i hear noise from the chainring. i miss the silence. i thought this new sugino ring would kill it and now its the cause.
this subject has probably been beat to death on bfssfg but i dont feel like searching over there right now.
the tension is pretty good, about a half inch of play. i’ll just try recentering the chainring. i hope the spider isnt slightly bent or something…
---
### Author:  [@tya](https://tarck.cc/u/tya)
#### Post date: [June 23, 2008, 8:20pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/14 "2008-06-23T20:20:24Z")
Yeah, I was talking utter bullshit. Sry. Though I have a KMC “6-speed 3/32” chain that’s 2.5mm inner width and a Shimano “9-speed 3/32” that is 2.3mm, the difference is minimal when compared to 1/8" (theoretically 3.175mm but my KMC measures 3.5mm) (can’t think in inches)
---
### Author:  [@cookietruck](https://tarck.cc/u/cookietruck)
#### Post date: [June 24, 2008, 3:21pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/15 "2008-06-24T15:21:00Z")
> [@andre nickatina](#):
>
> Nah dude. Me and Zelah spent the other night filing down his chain ring and adding in some secret lube (read: semen) that has not only allowed a 3/32 chain to be silky smooth on his tarck drivetrain, but has also inadvertently created a perpetual motion machine. Now we have all our group rides on the freeway and drag race rice rockets for a living.
haha, so was Zelah the supplier of hte semen and you were the cultivator. gross dude.
---
### Author:  [@1percenttruck](https://tarck.cc/u/1percenttruck)
#### Post date: [June 24, 2008, 7:15pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/16 "2008-06-24T19:15:12Z")
> [@(|)](#):
>
> [quote=“andre nickatina”]Nah dude. Me and Zelah spent the other night filing down his chain ring and adding in some secret lube (read: semen) that has not only allowed a 3/32 chain to be silky smooth on his tarck drivetrain, but has also inadvertently created a perpetual motion machine. Now we have all our group rides on the freeway and drag race rice rockets for a living.
haha, so was Zelah the supplier of hte semen and you were the cultivator. gross dude.[/quote]
Nah we got that shit from the sperm bank at the hospital!
---
### Author:  [@phil](https://tarck.cc/u/phil)
#### Post date: [June 24, 2008, 8:46pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/17 "2008-06-24T20:46:54Z")
don’t lie dude. the video’s on redtube anyways.
---
### Author:  [@room203](https://tarck.cc/u/room203)
#### Post date: [June 24, 2008, 9:25pm UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/18 "2008-06-24T21:25:23Z")
speaking of lube (sort of), thats all my chain needed and now its silent again except for the occasional click which is either from my really crappy pedals, chainring bolts, or crank bolts, all of which i am going to grease since i forgot to do that. i ALWAYS forget to do that. it sucks. i dont think i greased my cog either now that i think about it 🐻
---
### Author:  [@catling](https://tarck.cc/u/catling)
#### Post date: [June 25, 2008, 1:47am UTC](https://tarck.cc/t/just-upgraded-bb-and-chainring-immediate-improvement/8632/19 "2008-06-25T01:47:03Z")
real talk:
replace everything at once. If you’re going to silence swapping out one piece at a time is the last thing you want to do. get everything at once, it’ll all wear together and stay quiet