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-   -   Crankset (https://www.bikeforums.net/singlespeed-fixed-gear/407111-crankset.html)

harrier 04-13-08 01:16 AM

Crankset
 
I am building up an old steel frame and need to make some choices on the cranks so that I can sort out the bottom bracket.

I have Campy track hubs (not flip-flop) that I am going to keep. I also have a Campy Daytona (Centaur) double crank that I could use. My concern is that there appear to be relatively few ring choices for the Centaur and it is ramped and pinned.

So, should I:
1. Keep the Centaur, find some flat chainrings in the size I want, and commit to Campy with the BB
2. Store the Centaur, buy Sugino RD48 and have a huge selection of chainrings - crank is not that expensive.
3. Buy used Shimano 600

Thoughts?

oldsprinter 04-13-08 01:25 AM

First, make sure the Daytonas are square taper or that you can get a bb the right width to get your chainline right.

You can get chainrings easily - no need to buy ramped, pinned rings just get the bcd right.

hiredgoons 04-13-08 01:30 AM


Originally Posted by oldsprinter (Post 6509614)
You can get chainrings easily - no need to buy ramped, pinned rings just get the bcd right.

http://sheldonbrown.com/harris/chainrings.html

metaljim 04-13-08 02:21 AM


Originally Posted by oldsprinter (Post 6509614)
First, make sure the Daytonas are square taper or that you can get a bb the right width to get your chainline right.

You can get chainrings easily - no need to buy ramped, pinned rings just get the bcd right.

this.

if it doesn't line up properly, i'd go looking for a used shimano 600 set.

harrier 04-13-08 02:52 PM

Any guess what the right spindle length would be to get the Daytona/Centaur rings to match a campy track hub? I don't care whether the ring is mounted on the outside or inside position.

frankstoneline 04-13-08 03:04 PM


Originally Posted by harrier (Post 6511841)
Any guess what the right spindle length would be to get the Daytona/Centaur rings to match a campy track hub? I don't care whether the ring is mounted on the outside or inside position.

my GUESS would be 110.
basically, find out the spindle length now and subtract a few mm's to get close, as properly fitted road bottom brackets should set the chainline in the middle of the 2 rings, or at the center ring if it is a 3 ring setup. At least this is what I've heard before.

evictionsurplus 04-13-08 03:13 PM

I had one awhile back but sold it due to few and pricey chainrings. I am pretty sure it is spec'd for a 111 bb spindle.

frankstoneline 04-13-08 03:18 PM


Originally Posted by evictionsurplus (Post 6511939)
I had one awhile back but sold it due to few and pricey chainrings. I am pretty sure it is spec'd for a 111 bb spindle.

the only one I found was speccd for a 116 as a road crank, meaning if it was used with both rings and gears, so 111 sounds about right.

operator 04-13-08 03:57 PM

What's the BCD on the crank?

jgarcia186 04-13-08 09:06 PM


Originally Posted by operator (Post 6512182)
What's the BCD on the crank?

prob 135, maybe 144

evictionsurplus 04-13-08 09:39 PM

I think it is 135. As I recall I had some 144 rings lying around and they wouldn't fit.

harrier 04-13-08 10:55 PM

135 BCD for the Daytona/Centaur


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