FrizzleFried
Well-Known Member
Sprocket is inside the disc...
Looks like an awful lot of plastic in that thing. Are you familiar with how to calculate radius in bends so that they don't kink? Some metals can take a tight radius while others may require a wide radius to prevent kinking. Unlike one-shot shoe bends, you have to know how to calculate radiuses to do-hickey bending.In your picture you have the sprocket outside of the disc. ???
To spread your chain stays, install the althread and turn the nuts out until the desired width in attained, put an extra nut on the outside of the althread to keep it in place. Get a spreader bar clamp and spread the inner part of the stay.
I just posted that one to show the action, other precautions have to be taken so the frame doesn't kink.Looks like an awful lot of plastic in that thing. Are you familiar with how to calculate radius in bends so that they don't kink? Some metals can take a tight radius while others may require a wide radius to prevent kinking. Unlike one-shot shoe bends, you have to know how to calculate radiuses to do-hickey bending.
Using a 5° offset in all of the stays would add 1" between the dropouts and keep the dropouts straight instead off at an angle. The 5° offsets would only draw the dropouts 1/16 of an inch closer to the bottom bracket.
Yeah, hickey style bending move a slight hair bend move a slight hair back bend, etc until you get the desired degree you're after. If you're a good welder the easiest way would be to cut the whole back end off the bike and use a hickey bender to put an offset in each stay. Then weld the stays back onto the frame.I just posted that one to show the action, other precautions have to be taken so the frame doesn't kink.
I used two sticks, that I custom shaped to the desired curve of the stay and used those as feet for my bar clamp, I have the old school bar clamps, they're 3' long and a little cumbersome but it worked.Yeah, hickey style bending move a slight hair bend move a slight hair back bend, etc until you get the desired degree you're after. If you're a good welder the easiest way would be to cut the whole back end off the bike and use a hickey bender to put an offset in each stay. Then weld the stays back onto the frame.
You should try the turnbuckle thing.I used two sticks, that I custom shaped to the desired curve of the stay and used those as feet for my bar clamp, I have the old school bar clamps, they're 3' long and a little cumbersome but it worked.
When I figured out where I wanted the wheel and all its attachments between the stays, basically the width. Then I used the althread to maintain my inner measurement at the drop outs, which was easy because of the flex in the frame. Then I used the bar clamp to spread the front of the stay ever so slightly, maybe 1/4-3/8". Then tighten the althread to bend the stays back to the wheel position. Leave it for awhile or warm it up to get rid of its memory, BAM! wheel, chain, disc fit.
Along with kinking your tubes using that methodget a jack all, or your muscles and spread the frame out lol
Thats funny...I made one of those already with the addition of parachute cord that I sling onto one side of the frame and reverse the end to press against one side of the frame an the other side and then pull the trigger to spread them now so I am not totally stuck without another set of hands to help...lol.In your picture you have the sprocket outside of the disc. ???
To spread your chain stays, install the althread and turn the nuts out until the desired width in attained, put an extra nut on the outside of the althread to keep it in place. Get a spreader bar clamp and spread the inner part of the stay.