Sugino 75 setup & chainline issues**********
#26
Spawn of Satan

Joined: Mar 2003
Posts: 765
Likes: 1
From: Grand Rapids, Michigan, USA
Sounds like the bb is loose.
It is the noise that concerns me. A properly adjusted bb should sound smooth, when you spin the cranks w/o the chain on. Do the cranks spin smoothly and spin for a long time (don't stop abruptly)?
It is the noise that concerns me. A properly adjusted bb should sound smooth, when you spin the cranks w/o the chain on. Do the cranks spin smoothly and spin for a long time (don't stop abruptly)?
#27
Thread Starter
Member
Joined: May 2009
Posts: 49
Likes: 1
They do spin pretty smoothly and for quite a few revolutions. I can however feel a suttle "something" when turning them.
I keep getting conflicting info on the loose bearing scenario. Some say you have to add a bearing & same say you shouldn't. ??
-john
I keep getting conflicting info on the loose bearing scenario. Some say you have to add a bearing & same say you shouldn't. ??
-john
#30
Veteran Racer


Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
The cage holds 9 1/4" diameter bearings, and the race will accomodate 10 bearings and still have a 1/8" overall gap left, so you should definitely add one bearing for a total of 10.
#31
Thread Starter
Member
Joined: May 2009
Posts: 49
Likes: 1
Thanks Tejanotrackie. I actually think the Sugino 75 BB bearing recepticals haold 11 on each side. I also think the cups can't hold more that 11.
I just went back to the shop & pulled the arms off the spindle. Wrench them down a little harded when re-installing them & the chainring now spins straight.
Gonna put it all together when I get home & give it all a chance to set in together. See if the BB still sounds "loose".
thanks for all the info guys,
-john
I just went back to the shop & pulled the arms off the spindle. Wrench them down a little harded when re-installing them & the chainring now spins straight.
Gonna put it all together when I get home & give it all a chance to set in together. See if the BB still sounds "loose".
thanks for all the info guys,
-john
#33
Thread Starter
Member
Joined: May 2009
Posts: 49
Likes: 1
Well, got it all together & went for a spin. Smooth as butter & seems silent! Chainline is perfect as well! Had a blast. My legs are not strong enough to keep it from wanting to run down hill but I'm getting a brake so no biggie. Thanks for all the info you guys gave me on this. I really appreciate it. There will be a pic in the Surly pic thread very soon!
-john
-john
#34
Veteran Racer


Joined: Jul 2009
Posts: 11,854
Likes: 913
From: Ciudad de Vacas, Tejas
Bikes: 34 frames + 80 wheels
I'm happy everything worked out for you. Sugino 75 is great stuff and will last a lifetime. Enjoy.





