BB for Sugino Mighty Competition
#1
Member
Thread Starter
BB for Sugino Mighty Competition
I have a 70's Sugino Mighty Competition crankset currently mounted on a Campy Pista BB - 111mm. The chainline with this setup is around 44.5mm, which is 2.5 mm too for out. - I have Dura Ace hubs, which have standard 42mm chainline.
Questions:
1. If i want to be anal about it (which i will) i suppose i should run a 107mm ISO spindle length with the crankset. Does anyone know of good quality English threaded BB with 107mm ISO spindle?
2. Has anyone run this crankset on a Sugino 75 BB, (109.5mm ISO), and what chainline did you get? (i'd rather not use this, as it has loose ball bearings)
Any alternatives with sealed bearings?
Thanks!
Questions:
1. If i want to be anal about it (which i will) i suppose i should run a 107mm ISO spindle length with the crankset. Does anyone know of good quality English threaded BB with 107mm ISO spindle?
2. Has anyone run this crankset on a Sugino 75 BB, (109.5mm ISO), and what chainline did you get? (i'd rather not use this, as it has loose ball bearings)
Any alternatives with sealed bearings?
Thanks!
#2
tumbleweed
https://www.retro-gression.com/collections/bottom-brackets/products/sugino-75-cartridge-bottom-bracket
specs say the spindle is 109.Should be just right but I would call scrod
specs say the spindle is 109.Should be just right but I would call scrod
#3
Member
Thread Starter
Thank you - however it says on Sugino's website and in the installation pdf that it's a special taper, only for Sugino75 cranks. - Not compatible with either ISO or JIS.
can't post link as i don't have enough posts, but it's here: suginoltd dot co dot jp/us/products/bb/pdf/MA-BB_CBB-SG75(JP_EN)20160824.pdf
can't post link as i don't have enough posts, but it's here: suginoltd dot co dot jp/us/products/bb/pdf/MA-BB_CBB-SG75(JP_EN)20160824.pdf
#4
Clark W. Griswold
Join Date: Mar 2014
Location: ,location, location
Posts: 13,516
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 4352 Post(s)
Liked 3,989 Times
in
2,663 Posts
Thank you - however it says on Sugino's website and in the installation pdf that it's a special taper, only for Sugino75 cranks. - Not compatible with either ISO or JIS.
can't post link as i don't have enough posts, but it's here: suginoltd dot co dot jp/us/products/bb/pdf/MA-BB_CBB-SG75(JP_EN)20160824.pdf
can't post link as i don't have enough posts, but it's here: suginoltd dot co dot jp/us/products/bb/pdf/MA-BB_CBB-SG75(JP_EN)20160824.pdf
The Sugino 75 cranks and BBs are ISO compatible. I am sure they say that to sell more of their own BBs but plenty of people have used something like a Phil Wood ISO taper in the proper length.
#5
Member
Thread Starter
Thanks - retro gression had a NOS MICHE Primato 107mm ISO so i ordered that - 107 ISO should technically be the correct length to achieve the perfect chainline. I will post the result after i install.
#6
Member
Thread Starter
Also, I asked Track Supermarket about the Sugino75 with cartridge bearings - they say that although the specs say 109mm, it is in fact 111mm.
#7
Clark W. Griswold
Join Date: Mar 2014
Location: ,location, location
Posts: 13,516
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 4352 Post(s)
Liked 3,989 Times
in
2,663 Posts
I guess the Sealed 75 BB is a bit longer for bikes that aren't pure track bikes.
#8
Member
Thread Starter
Thanks for chiming in.
#9
Senior Member
Join Date: Sep 2009
Location: Spain
Posts: 185
Bikes: Tommasini, Caad 7 , Seven, Pinarello
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
Likes: 0
Liked 15 Times
in
10 Posts
#10
Clark W. Griswold
Join Date: Mar 2014
Location: ,location, location
Posts: 13,516
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 4352 Post(s)
Liked 3,989 Times
in
2,663 Posts
#11
Senior Member
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,904
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
Mentioned: 129 Post(s)
Tagged: 0 Thread(s)
Quoted: 4806 Post(s)
Liked 3,928 Times
in
2,553 Posts
For a data point, I've been running Sugino 75 with Miche Pista BBs since 2012 on my good fix gear. 120 spacing, Miche track hubs. I never measured the chainline but chain is dead straight. I've put 18,000 miles on the cranks and am on the second BB. This is a road bike that sees all weather above freezing. If there was incompatibility between the two, you'd think I'd have seen it by now. (The Miche was recommended to me by POrtland's fix gear guru to run with the Sugino 75.)
Ben
Ben