Quick question: what length bottom bracket for Octalink double?
09-03-15 | 12:56 PM
#1
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From: Denver
Bikes: One new one, a couple old ones, and a mountain bike.
Quick question: what length BB spindle for Octalink double?
I stupidly bought a 6500 Ultegra crank thinking it would be square taper.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
Bike info if needed:
1987 Bianchi Sport SX, English threaded 68mm BB.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
Bike info if needed:
1987 Bianchi Sport SX, English threaded 68mm BB.
09-03-15 | 01:27 PM
#2
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From: NW,Oregon Coast
Bikes: 8
Maybe so .. Octalink is relatively exclusive to Shimano .. I cant guess what the matching BB should be .
Asked at any Bike Shops?
I have an "AC" Adventure Cycling made crank* it takes an XTR Octalink Cartridge BB.
bought it for its 110-58 spider Back then there was a spline fixing of spider to crankarms. then fit the 3 chainrings.
Asked at any Bike Shops?
I have an "AC" Adventure Cycling made crank* it takes an XTR Octalink Cartridge BB.
bought it for its 110-58 spider Back then there was a spline fixing of spider to crankarms. then fit the 3 chainrings.
09-03-15 | 02:14 PM
#3
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Joined: Dec 2014
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I stupidly bought a 6500 Ultegra crank thinking it would be square taper.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
Bike info if needed:
1987 Bianchi Sport SX, English threaded 68mm BB.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
Bike info if needed:
1987 Bianchi Sport SX, English threaded 68mm BB.
Yes, they're sadly really $45 (they were $20 10 years ago).
There is a double and triple spindle length. The double is 109.5mm (5500). The triple is 118.5mm (5503).
I bought another vintage bike a couple years ago, same issue as you with 6500 crankset. I can say from experience, you'd be better off just selling your crankset and using that money, plus money you would've spent on the Octalink BB, to buy a newer Shimano crankset with 24mm spindle for same price...which will probably be better parts supported in the future, not to mention lighter, stiffer, etc.
Last edited by Jamminatrix; 09-03-15 at 02:21 PM.
09-03-15 | 02:27 PM
#5
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Joined: Jun 2010
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From: Pearland, Texas
Bikes: Cannondale, Trek, Raleigh, Santana
I stupidly bought a 6500 Ultegra crank thinking it would be square taper.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
I've done a bit of research, but am hoping someone can confirm that for an Octalink double, the spindle length should be 109.5mm?
If they're really $45, maybe I should just sell the crank as it was less $ than that.
Brad
09-03-15 | 08:18 PM
#6
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Joined: May 2014
Posts: 748
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From: Denver
Bikes: One new one, a couple old ones, and a mountain bike.
While I'd prefer a 172.5 crank system, I'm considering picking up this Truvativ (SRAM) crank. It's new, and comes with the bottom bracket. All for $50 shipped... any reason to avoid?
New SRAM Truvativ GXP Elita Crankset 170mm 53 39 Crank Double Road 10 Speed BB | eBay
New SRAM Truvativ GXP Elita Crankset 170mm 53 39 Crank Double Road 10 Speed BB | eBay
09-04-15 | 08:32 AM
#7
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Joined: May 2014
Posts: 748
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From: Denver
Bikes: One new one, a couple old ones, and a mountain bike.
Grabbed it for $50 shipped. Stupid price on a new crank/BB. I'll probably sell the Ultegra for $40 since it's cherry and be about even.
Thanks all.
Thanks all.
09-04-15 | 10:01 AM
#8
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Joined: Feb 2004
Posts: 30,225
Likes: 649
From: St Peters, Missouri
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Yup. I'm pretty sure they only came in 2 lengths 109.5 mm for doubles and 118 mm for triples.
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