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Posted

Like buses you wait ages then 2 turn up at once. My friend that I built the GS550 chop for last year bought me a hardtail frame and I sold him a project GN400 I had in the lock up. I started working on the frame, then he bought a second GN 400 chop and bought that to me, so I am on both at the same time.

 

Posted

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Blue hardtail frame is the first one. Red and white one was the second.

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I made bearing cups to fit the GN forks and yokes into the blue frame.

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Axle plates were rough and needed sorting out to fit the wheel in. I tried the GN 400 wheel but the hub is huge and the sprocket carrier is offset too far to let me centre the rim. I had a Chinese 125cc bike that was scrap but the wheels are decent. They are the same size rims as the GN but much narrower hubs.

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Axle plates modified and tidied up, just need to sort chain adjusters.

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Axle plates were 17mm ish, probably Imperial, not sure what the frame was made for but looks like ride side chain originally. I used the 15mm chinky wheel rear spindle. Axle slots were rough so I opened them up to 21mm, got them even and made top hats to fit the 15mm spindle.

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I prefer cast wheels to spoke and think these look good

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This is the other one, popped up for sale local too cheap to ignore so my mate snapped it up.

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Re made the side stand into a bolt on one. The frame of the red one had been painted but had no stand, seat, or footrest mounts welded on!

  • Like 2
  • 3 weeks later...
Posted

Been getting stuck into the red GN frame. They have a short top tube that makes it hard to fit a custom tank because the frame tubes get in the way. I decided the way to go was to cut the cradle tubes out completely and fit a centre post. The top tube had already been extended to fit the hardtail. I have cut all the excess tubes out and the centre stand brackets, plus any other old bracket I wasn't happy with.

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Bare frame before cutting

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Frame after cutting

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Original Sportster tank fits nice now

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Alien tank is going to be used though

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Going to brace the area where the original frame meets the hardtail and fit the centre post.

Posted

It is going for a specific style that the Alien tank will work well with. The Sportster tank will be used on the other one.

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