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PostPosted: Mon Jul 22, 2013 1:25 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Fri Jul 23, 2010 4:13 pm
Posts: 3193
Location: Royal Forest of Dean (Still looking for the Bear !)
Hi

I've got two identical Syncros cranks.... well I thought they were !


Sods law is I spent an hour polishing a set and then mounted the Chain rings (using some old bolts for the time being) to see what I had....
Only then did I notice that the Logo's on one set are different to the other I.E they're in different places and differ slightly in size :oops:

Having looked at the cranks I think the set with the chain rings on are the newer of the two
does anyone know the history well enough to advise... my build is circa 93

If I turn them over one set has a four digit number after the 175mm whilst the other has a five digit number
naturally this could mean absolutely nothing

Sorry for the crappy picture only it was late last night in the Man Cave when I spotted this
and now I'm leaning to the other set as they somehow look more retro


I await enlightenment :lol:


Attachments:
File comment: Which version pre-dates the other
Syncros crank.jpg
Syncros crank.jpg [ 139.27 KiB | Viewed 284 times ]
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PostPosted: Tue Jul 23, 2013 6:18 pm 
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Joined: Fri Jun 14, 2013 12:02 am
Posts: 683
Location: Canada
Those chainrings are so hot! I don't know but I think they are both later than 1993 but that wouldn't concern me. there are lots of syncros catalogs in the archive on this site which you can pour over. Why does it look like the two tabs are missing on the foremost crank? Sorry I am not familiar with these cranks.


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PostPosted: Tue Jul 23, 2013 6:56 pm 
BoTM Winner / Gold Trader
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Joined: Fri Feb 26, 2010 12:36 am
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Location: Burlington, ON Canada
cyclotoine wrote:
Why does it look like the two tabs are missing on the foremost crank?


They use a bolt on insert (supposedly to dissipate stress risers). You can see it under the big chain ring in the top crank in the pic (it's black).

Look at the exploded diagram in the manual (PDF). It's part #3.

http://fcdn.mtbr.com/attachments/vintag ... raleng.pdf


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PostPosted: Thu Jul 25, 2013 1:41 pm 
Gold Trader
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Joined: Sat Aug 02, 2008 3:12 pm
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Location: Oh Canada!
the one with the logos closer to the crank bolt are the first gen. the one with logos closer to the pedal are later generation. from what i've been told/read, the logo was moved as the strength of the arm was compromised and was more prone to failure. not sure how true that is, but i own and use a set of both, and recently sold off a third later gen set. other than logo placement, the cranks are identical in design. the Syncros forged cranks was introduced around 96/97 and was available up to about 2000 i think.


Last edited by RockiMtn on Thu Jul 25, 2013 4:52 pm, edited 1 time in total.

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PostPosted: Thu Jul 25, 2013 4:48 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Fri Jul 23, 2010 4:13 pm
Posts: 3193
Location: Royal Forest of Dean (Still looking for the Bear !)
Many thanks guy for taking the time to answer my question

I love Syncros cranks especially the ornate chainrings they're so classy
shame they're a bit to new for my current build but will be used on my next project


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