Front crank set.
This takes some explaination as to why anyone would switch these out. First of all I'm not planning to pedal a bike very far these days. I have tried honest and it just isn't a comfortable thing. I can go like the devil down hill and even on a flat stretch but the hills just kick my fat butt.
If that weren't so I would not have bought the bike engine. So with a motorized bike I want to be able to pedal to start, to pedal if I hit a really bad bad hill, to take a turn with the clutch engaged, or to get it home if I run out of gas. I have done that.
Since the pedals are not the primary power source they are more for comfort than efficiency in my case. On the Sissy Schwinn and the Transylvania chopper the pedals on a full sized crank were too long. They hit the ground in a leaning turn on the chopper. The high end was a bit uncomfortable. Since I had the crank set from a twenty inch girls bike and they fit well enough, I switched them out.
I thought I would show you how the crank set looks and explain a little about how to pull one. First of all only one side has a bolt to remove it. Its the left side. Then of all the fun things EVERYTHING is treaded backwards. Yes that's right nothing will thread the way it should.
1. I spray the pedal connection with penetrating oil. Yes grasshopper the pedal has to come off. I found a good 4 pound sledge hammer is the right tool for the job. A claw hammer would probably work in a pinch. Set your wrench tight on the pedal nut and gently tap it with a hammer if it doesn't move with just your brute strength. If the tap with the hammer doesn't work GET A BIGGER HAMMER.
Once you get the pedal off remove the big nut. once that is off remove the left hand bearing assembly.. REMEMBER HOW IT CAME OUT. then slip the whole crank arm through the bike. Take out the right hand bearing and note which side is in and which is out.
Now carb cleaner and repack the bearings before you reassemble the crank. This is the full 26" crank set for a cruiser. Everything is there but one of the bearings is turned wrong and the washer is on the wrong side that was to keep the bearings from rubbing in storage. Just remember how yours some out and you will be fine.
Now if anyone can tell this better please do I'm just telling what I did and it may be all wrong
