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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 08-19-14, 09:00 AM   #1
Baitong
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Is my chainline really bad ?

I dont know why. But there is no way to get a better chainline.
The crank is already close to the chainstay. And my actual bottom bracket is 111mm Iso
I just swapped the crank from the FSA Gimondi to the MICHE Primato Advanced
Same problem...
But when riding. I just hear nothing. A very very little noise. Like the chain is stretching.i do hear it only when going in silent places. Its not too big otherwise it will drive me crazy. Im just worried if it will ruin my chainring or sprocket..
I do keep my chain really well tensioned by the help pf my surly tensioner. About 1/2 inch slack

chain is not centered with the chainring and is doesnt sit in the center of the chainring. Is that a problem relative to bad chainlines? By the way i run a long chain, it is helpful to a bad chainline
I will post the photo..
Let me know what u think. Any is riding with a chainline like mine??
It is too bad ??
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Old 08-19-14, 09:16 AM   #2
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You should be all good. Track cranks matched with the correct bb spindle length on a track frame with a rear track hub will ALWAYS be fine.
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Old 08-19-14, 09:34 AM   #3
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Originally Posted by Shotland View Post
You should be all good. Track cranks matched with the correct bb spindle length on a track frame with a rear track hub will ALWAYS be fine.
Except that Miche crankset should be used with a 107mm ISO spindle, not 111mm.
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Old 08-19-14, 09:40 AM   #4
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OP, have you measured it at the front and rear?
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Old 08-19-14, 09:43 AM   #5
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Quote:
Originally Posted by Scrodzilla View Post
Except that Miche crankset should be used with a 107mm ISO spindle, not 111mm.
And with the Gimondi he should have been running a 103. Youch.

Edit: Hard to tell from the "hanging pic" but ten bucks says that chain is too tight as well.
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Old 08-19-14, 09:46 AM   #6
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Except that Miche crankset should be used with a 107mm ISO spindle, not 111mm.

Ah, there you go! I don't know miche cranks and figured he matched it correctly. Thanks for the input! There you have it my friend. Get a different BB for ultimate smoothness.
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Old 08-19-14, 09:50 AM   #7
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[
i think a 107mm Iso BB will not fit as chainring bolts will hit the frame. The actual BB 111mm to the frame.
And it look like that.
Pic below:
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File Type: jpg image.jpg (102.9 KB, 19 views)
File Type: jpg image.jpg (97.7 KB, 23 views)

Last edited by Baitong; 08-19-14 at 10:56 AM.
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Old 08-19-14, 10:04 AM   #8
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wait... It's default BB is JIS?
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Old 08-19-14, 10:19 AM   #9
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Quote:
Originally Posted by Baitong View Post
I have tried the MICHE 107mm JIS as default BB for the miche crankset.
It was way too short. And left cranks were to close to hit the frame . Too bad

I think a 109.5mm BB will be the best BB i could fit in there, but i dont find one selling this length.
but the difference is only 1.5mm from my actual BB that fitted great. The 111mm iSO
Best of luck to you.
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Old 08-19-14, 10:59 AM   #10
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Yes. It is. The cranks are clearly labelled as JIS

but any ISO will work as well.
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Old 08-19-14, 11:32 AM   #11
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Yes. It is. The cranks are clearly labelled as JIS
I'd love to see a pic.

I've never in my life seen a Miche crankset that wasn't ISO (and I've seen a lot of them).
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Old 08-19-14, 11:53 AM   #12
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maybe he purchased a knock off
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Old 08-19-14, 12:11 PM   #13
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Quote:
Originally Posted by Baitong View Post
[
i think a 107mm Iso BB will not fit as chainring bolts will hit the frame. The actual BB 111mm to the frame.
And it look like that.
Pic below:
None of this makes any sense. The BB you use depends on the crankset you use, not the frame. Ever.

Also, Miche Primato BBs are adjustable from side to side to overcome chainline/clearance issues.

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maybe he purchased a knock off
Maybe he's just a hee haw.
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Old 08-19-14, 07:44 PM   #14
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Quote:
Originally Posted by Scrodzilla View Post
I'd love to see a pic.

I've never in my life seen a Miche crankset that wasn't ISO (and I've seen a lot of them).
Both ISO and JIS are square taper. So both will work
In the photo here i show a JIS 107mm on the left.
and a ISO 110mm on thr right
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Old 08-19-14, 08:52 PM   #15
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Read this, ding dong: Square Taper Bottom Bracket Interchangeability
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Old 08-19-14, 11:16 PM   #16
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Quote:
Originally Posted by Baitong View Post
Both ISO and JIS are square taper. So both will work
In the photo here i show a JIS 107mm on the left.
and a ISO 110mm on thr right

Uh oh.

How many cranksets have you ruined?
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Old 08-19-14, 11:43 PM   #17
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OP has all the dumb.
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Old 08-20-14, 02:19 AM   #18
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wait i was under the assumption that miche is switching over to jis square taper.... Even on their website its labeled as needing a jis bb.
uhhggg there website isnt working correctly...

but ive also seen other sites list it as requiring a jis bb as well.
Universal Cycles -- Miche Advanced Track Crankset
Universal Cycles -- Miche Pista/Track Bottom Brackets

wiggle.com | Miche Primato Advanced Silver Track Chainset | Road Chainsets
wiggle.com | Miche Primato Track Bottom Bracket | Bottom Brackets

Miche Advanced Track Crank, 170mm, w/49t 1/8" Ring - AEBike.com
Bicycle Bottom Brackets - AEBike.com
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Old 08-20-14, 04:26 AM   #19
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I have fit the miche BB 107 JIS
But chainline still bad. And the 107mm JIS is not long enough for the non-drive side. So left crank will hit the frame
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Old 08-20-14, 04:30 AM   #20
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Rear sprocket is not aligned with the front chainring

If i change rear hub with a 46mm chainline. Will i solve the prob ?
miche hubs have 42mm chainline
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Old 08-20-14, 04:36 AM   #21
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miche bbs have adjustable chainlines.......................................................................................... ...
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Old 08-20-14, 05:32 AM   #22
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miche bbs have adjustable chainlines.......................................................................................... ...
Yes. They are. But the chainring bolt will hit the frame same way.
I dont have much clearance with the chainstay
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Old 08-20-14, 05:40 AM   #23
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When I was changing my crankset awhile back and considering whether to cheap-out by keeping my old bottom bracket, I searched all over this place before deciding to get the correct ISO BB to go with my cranks. But something that stuck with me from discussions I found on the subject was that in at least one instance, someone pretty well thought of around here supported interchangeability of ISO/JIS:

Quote:
Originally Posted by Scrodzilla View Post
Quote:
Originally Posted by markaitch

fwiw, if you do decide to go the longer spindle route there are plenty of iso bbs available with them so please resist the calls to go with a jis bb.
As expected, you obviously know much more than Sheldon Brown on the matter of ISO/JIS interchangeability.
Quote:
Originally Posted by Scrodzilla View Post
You must have missed the last sentence:

Quote:
Originally Posted by Sheldon Brown

I generally avoid mixing sizes on customers' bikes, but I have a lot of experience mixing ISO/J.I.S. in both directions on my own personal bikes, and it as never given me a lick of trouble.
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Old 08-20-14, 06:46 AM   #24
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from your "Pictures" it doesnt look like you have any slack in that chain at all, it looks tight which can also cause noise.

loosen it up a bit, quit worrying about noises so much. my chainline is off by 2 to 3mm and no problems.

this is my chain slack, some may say its too loose or maybe not enough ?? but i have zero problems. no binding ect. **** before i ran a biopace chainring which is of an oval design so when i adjusted for chain slack i had to adjust from the tightest point "without binding" because at another point on a biopace is very loose by design but not intended for a singlespeed but for a bike with a chain tensioner
View My Video

yes ive been drinking..

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Old 08-20-14, 10:58 AM   #25
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There is so much multi-level fail in this thread.

Best of luck to the OP - with his bike and life in general.
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