Well the motor parts I ordered should be here in a few weeks so it was time to get the chassis into shape and get it off to powdercoat.
Any how I got a good amount accomplished over the weekend on the ZB project, and I couldn't have pulled off as much as I did if it wasn't for the help I got by Ray Perez at RJP racing. Thanks so much Ray.
1. Dent in frame repaired
2. Extra NSR swingarm has been modded with a ZB swingarm shock mount to work with out the aftermarket offset kit.
The
frame repair method was done by drilling a hole on the inner side and tapping out with various punches, then the hole was welded up. I'm pretty impressed by 1 Rays ability to smooth out the hole, and 2 weld the hole on the inner side and grind it so smooth enough that with
powdercoat on it I would be surprised if someone could tell.
For
The swingarm the plan was to cut off the shock mount on the original ZB swingarm and replace the NSR shock mount with it. As the NSR swingarm is it does not align with the ZB upper shock mount its 9.9mm to the right. Its possible to order up the aftermarket offset kit which I have, but with the kit it makes fitting a big bore upswept pipe very dificult to fit.
Getting the shock mounts off wasn't that hard. They came off pretty clean with a cutoff wheel. A good amount of time was spent though grinding off any extra weld that remained and making everything smooth and level.
Rays welding was pretty good but I had him completely over weld it for strength and I ground it smooth after all was said and done. Ill get you some better pics after powdercoat. Anyhow after some assessment I think I will choose to use this swingarm over the other NSR one I have that I use the offset kit with.
The geometry of the bike was somewhat of a custom placement. We were shooting to lower the bikes rear distance from tip of subframe to tip of swingarm by a CM. The ride height IMO with the offset kit was just a smidge too high. I think we got it dead on. With rays tape the previous setup was 19 and 1/8" now with this new setup its 18 and 7/8". When all was said and done the geometry of the forks to rear shock was 71 degrees on the forks and 70 degrees on the rear shock. Playing with it some more I have about 5 to 7mm I could raise the front forks if needed to hit the ideal number. Ill play with that when I have the weight of the motor back in the chassis.
Here are the pictures of the frame fix. the dent was about the size of my thumb.
![Image]()
![Image]()
![Image]()
![Image]()
Any how I got a good amount accomplished over the weekend on the ZB project, and I couldn't have pulled off as much as I did if it wasn't for the help I got by Ray Perez at RJP racing. Thanks so much Ray.
1. Dent in frame repaired
2. Extra NSR swingarm has been modded with a ZB swingarm shock mount to work with out the aftermarket offset kit.
The
frame repair method was done by drilling a hole on the inner side and tapping out with various punches, then the hole was welded up. I'm pretty impressed by 1 Rays ability to smooth out the hole, and 2 weld the hole on the inner side and grind it so smooth enough that with
powdercoat on it I would be surprised if someone could tell.
For
The swingarm the plan was to cut off the shock mount on the original ZB swingarm and replace the NSR shock mount with it. As the NSR swingarm is it does not align with the ZB upper shock mount its 9.9mm to the right. Its possible to order up the aftermarket offset kit which I have, but with the kit it makes fitting a big bore upswept pipe very dificult to fit.
Getting the shock mounts off wasn't that hard. They came off pretty clean with a cutoff wheel. A good amount of time was spent though grinding off any extra weld that remained and making everything smooth and level.
Rays welding was pretty good but I had him completely over weld it for strength and I ground it smooth after all was said and done. Ill get you some better pics after powdercoat. Anyhow after some assessment I think I will choose to use this swingarm over the other NSR one I have that I use the offset kit with.
The geometry of the bike was somewhat of a custom placement. We were shooting to lower the bikes rear distance from tip of subframe to tip of swingarm by a CM. The ride height IMO with the offset kit was just a smidge too high. I think we got it dead on. With rays tape the previous setup was 19 and 1/8" now with this new setup its 18 and 7/8". When all was said and done the geometry of the forks to rear shock was 71 degrees on the forks and 70 degrees on the rear shock. Playing with it some more I have about 5 to 7mm I could raise the front forks if needed to hit the ideal number. Ill play with that when I have the weight of the motor back in the chassis.
Here are the pictures of the frame fix. the dent was about the size of my thumb.
