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Help me with my Vuelta Pista cranks & chainline

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Help me with my Vuelta Pista cranks & chainline

Old 05-20-13, 06:04 PM
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Help me with my Vuelta Pista cranks & chainline

Hi guys,

For some reason I've acquired a set of these Vuelta Pista cranks instead of just going with a known-working configuration.

I'm having trouble getting a good chainline. I have a 107mm Shimano bottom bracket (JIS taper) and a 107mm Miche (ISO taper), both of which are apparently too wide.

I started with the Shimano, and I hoped the Miche would fix things since the cranks should snug up more on the ISO taper, but I still need a few more milimeters...

So, two questions:

First, I've seen reports of the Miche bottom bracket being compatible with these cranks -- why is what has apparently worked for others not working for me here? It's a standard track frame (Spicer), Formula flip-flop hub...

Then, presuming I am just going to keep buying bottom brackets, where do I go from here? Will the chainline with a 103mm JIS taper be narrower than the 107mm ISO taper? Or, is my only option left a 103mm ISO taper (given that I need narrower than 107mm ISO taper)?

I'm feeling like a bit of an idiot and I'm getting really annoyed at not having this thing built up and ridable, so here I am posting about it!

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Old 05-20-13, 06:14 PM
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inb4carleton bashes the thread title for "thread"
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Old 05-20-13, 06:32 PM
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i used to have a vuelta pista crankset. i used this

https://www.benscycle.net/index.php?m...oducts_id=9452

and had a decent chainline.

but. perhaps you or i or both got the black sheep.

Last edited by seanifred; 05-20-13 at 06:35 PM.
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Old 05-20-13, 06:37 PM
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According to Vuelta's site, that crankset (which has a JIS interface) uses a 108mm spindle but I've found that using a 103mm JIS BB will give a much straighter chainline.

Last edited by Scrodzilla; 05-20-13 at 06:43 PM.
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Old 05-20-13, 06:38 PM
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Hmm OK; did you have your chainring on the inside or outside? And what frame and rear hub was this with? It seems like there are different versions of this crank or something...

Originally Posted by seanifred
i used to have a vuelta pista crankset. i used this

https://www.benscycle.net/index.php?m...oducts_id=9452

and had a decent chainline.

but. perhaps you or i or both got the black sheep.
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Old 05-20-13, 06:39 PM
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Why don't you just contact Vuelta and ask them?
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Old 05-20-13, 06:42 PM
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I'm aware that they specify 108mm, I just don't see many BB options available in that size. Also, these are definately ISO taper, and even with a 107mm ISO BB they're too wide. I'm going to try some 103mm BBs, and once something works I'll take a few comparison pics and post them up.

I'm just annoyed that I've now spent more than whatever I was trying to save getting these cheap-ass cranks...

Originally Posted by Scrodzilla
According to Vuelta's site, that crankset uses a 108mm spindle (which is JIS) but I've found that using a 103mm BB will give a much straighter chainline.
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Old 05-20-13, 06:44 PM
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Have a blast.
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Old 05-20-13, 06:46 PM
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Originally Posted by Scrodzilla
Why don't you just contact Vuelta and ask them?
I guess that's not a bad idea. I've not actually tried to reach them, I guess I just assumed it was one of those places that manufactures cheap **** and has no customer service presence...
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Old 05-20-13, 06:48 PM
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Originally Posted by jasonyates
I guess that's not a bad idea. I've not actually tried to reach them, I guess I just assumed it one of those places that manufactures cheap **** and has no customer service presence...
I'm wondering how late the pizza place up the road is open but instead of looking them up online or calling, I'll consult a pizza forum.

brb
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Old 05-20-13, 06:50 PM
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I haven't posted here in 6 years -- has the definition of discussion forum changed since then?

Also you run a shop right? Why not try to sell me something instead of trash talking?

Originally Posted by Scrodzilla
I'm wondering how late the pizza place up the road is open but instead of looking them up online or calling, I'll consult a pizza forum.

brb
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Old 05-20-13, 06:53 PM
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Has the definition of joking changed in the last six years as well?

Just because I run a shop doesn't mean I need to "try to sell you something".

Last edited by Scrodzilla; 05-20-13 at 06:57 PM.
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Old 05-20-13, 07:02 PM
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PIZZA

alsdkfjalksdf
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Old 05-20-13, 07:07 PM
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Ok ok I misinterpreted your tone. You're right anyways but I just figured if the info was available at all it would already be out there; this was just an attempt to reach anyone else actually running these cranks while I continue experimenting. And I actually just emailed Vuelta so we'll see what happens with that as well.

Edit: Also, I know this is a total newbie topic, but I posted because I'm surprised by the ambiguity/lack of info -- I'm seeing anecdotal reports that these cranks are JIS and ISO, that they take a 110, 108, 107, or 103mm spindle, etc. Like you seem knowledgable and you are saying they are JIS, I am sitting here with JIS and ISO bottom brackets and I can see that these cranks clearly fit the ISO spindle properly compared to the JIS, so, I was just confused by all that more than I thought I would be, hence the newbie post.

(At this point it seems that something in a 103mm will be best, which, if so Scrodzilla, you'll be the first person with experience to have recommended that to me! Still need to see if Vuelta does get back to me or not though...)

Edit 2: These are the only other coherent info I found from searching on this topic:

https://forums.roadbikereview.com/fix...ks-227254.html

https://www.bikeforums.net/archive/in.../t-752025.html

See what I mean?

Originally Posted by Scrodzilla
Has the definition of joking changed in the last six years as well?

Just because I run a shop doesn't mean I need to "try to sell you something".

Last edited by jasonyates; 05-20-13 at 07:32 PM.
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Old 05-20-13, 09:38 PM
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Originally Posted by Scrodzilla
I'm wondering how late the pizza place up the road is open but instead of looking them up online or calling, I'll consult a pizza forum.
Don't go the Ford 150 forum. A complete waste of time.

Those idiots can't tell me where to get a new truck for six grand.
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Old 05-21-13, 01:24 PM
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This is Vuelta's response, by the way:

It is generally recommended to run Vuelta Pista cranks with a bottom bracket with a 108 millimeter spindle.

However, since most of our Pista cranks are used as part of a road bike-fixie conversion, the actual spindle length required may be different, depending on the design of the bike frame and wheels used.

Please note that all Vuelta cranks are made to be compatible with JIS square taper bottom brackets.
Given that they don't specify what chainline that is supposed to result in, it's basicly just figure it out based on your actual setup. Also, regarding the JIS/ISO taper thing, these fit about half-way on to a JIS taper, and they fit "all the way" (edit: ~1-2mm extra clearance) on to an ISO taper, so whatever that means.

Looking at the results of my work so far, with a 107mm ISO-taper spindle, these cranks give the close to the "right" 42mm chainline with the chainring on the inside of the spider, eg. fit-wise on a track frame they may be no better than a set of old road cranks. I'm going to try a 103mm bottom bracket next and see if I have clearance problems or not with that...

Also I couldn't help but notice this here:

https://www.on-one.co.uk/news/product...ne-track-crank

After the debacle regarding the wrong offset on our old track cranks, we've now got the correct model in - go here to see our new 42mm chainline crank - an ideal match for a 120mm spaced frame.
These Vuelta cranks must be made by the same people...

Last edited by jasonyates; 05-21-13 at 02:10 PM.
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Old 05-21-13, 01:32 PM
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i had a pretty good chainline with the bb i linked before on a dolan precursa. not perfect, but i had no dropped chains. i have since upgraded a few times.
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Old 05-21-13, 01:32 PM
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Originally Posted by jasonyates
Also, regarding the JIS/ISO taper thing, these fit about half-way on to a JIS taper, and they fit "all the way" on to an ISO taper, so whatever that means.
As I've already said, Vuelta Pista cranks are JIS. You do know that the crank interface isn't supposed to go "all the way" onto the spindle, right?

BTW - Those On One cranks you just linked to were made by Andel, not Vuelta.

Last edited by Scrodzilla; 05-21-13 at 01:36 PM.
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Old 05-21-13, 02:04 PM
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Originally Posted by yummygooey
PIZZA

alsdkfjalksdf
I need a good pizza in my life right about now.
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Old 05-21-13, 02:04 PM
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Originally Posted by Scrodzilla
As I've already said, Vuelta Pista cranks are JIS. You do know that the crank interface isn't supposed to go "all the way" onto the spindle, right?

BTW - Those On One cranks you just linked to were made by Andel, not Vuelta.
Well, by "all the way" I meant it has ~1-2mm left at each end, eg. that much more until the crank bottoms out at the base of the spindle or the end of the spindle bottoms out in the crank -- to be clear I have no official idea what is right or wrong, it just looks more correct on the ISO bottom bracket to me...

I don't care to debate that as I have no authority knowledge on the subject, I'm just trying to get the fit right using whatever will work at this point. I'm realizing that the issue here was my assumption that these "Pista" cranks were supposed to give a 42mm chainline -- now that I've figured out what is what I know what will work so I guess this case is closed.

Bottom line is basicly that Vuelta Pista are not "true" "track" cranks -- looks like they are spec'd more like SS/fixie conversion cranks as they definately give wider than a 42mm chainline using the BB they recommend... (And they look terrible with the chainring on the inside so that isn't really an option.)

Last edited by jasonyates; 05-21-13 at 02:14 PM.
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Old 05-21-13, 02:16 PM
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Just for ****s and giggles I pulled apart my setup to see what BB I'm using and found that I was mistaken - I am using a Shimano 107mm JIS BB (it's my cobbled-together beater/rain bike so I don't really give a crap about what parts are on it). Guess what? My chainline is fine.

I have a feeling you are just placing the crank arms on the spindle instead of actually installing them and fully torquing them onto the spindle, which is useless when it comes to measuring anything. Also, a chainline being off by a few mm isn't going to kill anyone. Even Omniums - which are most certainly a "true track crank" don't have a magical 42mm chainline.

Stop overcomplicating this. You bought a $50 crankset. Put your bike together and go ride the damn thing.

Last edited by Scrodzilla; 05-21-13 at 02:30 PM.
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Old 05-21-13, 02:21 PM
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Originally Posted by yummygooey
inb4carleton bashes the thread title for "thread"
I changed it.

Originally Posted by Scrodzilla
Stop overcomplicating this. Put your bike together and go ride the damn thing.
QFMFT
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Old 05-21-13, 02:39 PM
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New favorite pizza topping as of last night: smoked mushrooms.
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Old 05-21-13, 02:39 PM
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Jalapenos are hella good on pizza.
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Old 05-21-13, 02:43 PM
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FWIW - that pizza place was open until 10. I got a bomb-ass greek pizza with spinach, feta cheese and black olives.
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