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General Chat (Vincent Related)
Reg Bolton Racer
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<blockquote data-quote="davidd" data-source="post: 51315" data-attributes="member: 1177"><p>Bill,</p><p></p><p>I am not 100% certain, but I see that he is using concentric bushes in the front end on the bottom link. You can tell because it is half way to side car position as can be seen by the short distance between the spring box and the fork blade. This set-up is a favorite of John Renwick. It is easy to make and it quickens the steering. I am not sure what front springs are in there. Some of the very early Thorntons were prototype springs that Laney tried out before settling on what he made available to the public. They tended to be lighter, which was good for the lighter racers. </p><p></p><p>The longer springs at the rear does lower the rake also. The Thornton rear springs caused sever "cocking" of the spring boxes and I actually had one come completely apart while racing. I came to the conclusion that what Reg did was the only sensible way to guide the rear springs properly, but after that spring box came apart on me I decided that I would go simple and made a rear coil-over. It is simple and light. </p><p></p><p>I believe that Reg is using a mod he designed for better ground clearance. He designed two plates to fit on the rear of the UFM that relocated the suspension mount around 2.5" to the rear. I suggested this mod to Carleton Palmer who was having cornering clearance issues with his Flash. Carleton used it successfully for year. This mod would also steepen the rake angle.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 51315, member: 1177"] Bill, I am not 100% certain, but I see that he is using concentric bushes in the front end on the bottom link. You can tell because it is half way to side car position as can be seen by the short distance between the spring box and the fork blade. This set-up is a favorite of John Renwick. It is easy to make and it quickens the steering. I am not sure what front springs are in there. Some of the very early Thorntons were prototype springs that Laney tried out before settling on what he made available to the public. They tended to be lighter, which was good for the lighter racers. The longer springs at the rear does lower the rake also. The Thornton rear springs caused sever "cocking" of the spring boxes and I actually had one come completely apart while racing. I came to the conclusion that what Reg did was the only sensible way to guide the rear springs properly, but after that spring box came apart on me I decided that I would go simple and made a rear coil-over. It is simple and light. I believe that Reg is using a mod he designed for better ground clearance. He designed two plates to fit on the rear of the UFM that relocated the suspension mount around 2.5" to the rear. I suggested this mod to Carleton Palmer who was having cornering clearance issues with his Flash. Carleton used it successfully for year. This mod would also steepen the rake angle. David [/QUOTE]
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Reg Bolton Racer
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