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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Trevor Southwell re brakes
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<blockquote data-quote="davidd" data-source="post: 177703" data-attributes="member: 1177"><p>In the '90s, I made a SS plate that was reasonably thick, but I was ignoring all the other weak links. More recently when discussing the brakes on the racer, I discussed the stock cable system vs. the twin cables with David Tompkins. David had taken my advice on the cables and used the Motion Pro Longitudinally Wound cables. He decided that two cables were better than dealing with the balance beam and bridge plate (with the outrigger) and went to the twin cable set-up. We had discussed the bridge plate blocking the airflow to the head and I had urged opening it up with two holes for some cool air flow. So, the first iteration was the Comet Racer:</p><p></p><p>[ATTACH=full]61469[/ATTACH]</p><p></p><p>I had good airflow to the head and the thick aluminum did not seem to bend. Scott was using David's front brake with the new shoes I made for them and he went to a different SLS brake. He used the LW cables with a mock bridge plate with two holes for airflow. There is nothing to bend in the system:</p><p></p><p>[ATTACH=full]61470[/ATTACH]</p><p></p><p>David's bike is on the right and Scott's is on the left. David's bridge plate provides lots of airflow and its only duty is to hold the front mudguard. Scott's is the more traditional Vincent set-up. David's braking improved greatly after going to this system. The design seems very effective, but most owners would prefer the original design over function.</p><p></p><p>[ATTACH=full]61471[/ATTACH]</p><p></p><p>Mike Hawthorne split the difference by bracing the balance beam and then bolting it in place so it would not rotate. He then ran two cables to the balance beam. I don't know if this setup bends. It appears to be fairly sturdy.</p><p></p><p>I think Dave's setup has proven to produce the best results with the least amount of weight. It is also easy to adjust.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 177703, member: 1177"] In the '90s, I made a SS plate that was reasonably thick, but I was ignoring all the other weak links. More recently when discussing the brakes on the racer, I discussed the stock cable system vs. the twin cables with David Tompkins. David had taken my advice on the cables and used the Motion Pro Longitudinally Wound cables. He decided that two cables were better than dealing with the balance beam and bridge plate (with the outrigger) and went to the twin cable set-up. We had discussed the bridge plate blocking the airflow to the head and I had urged opening it up with two holes for some cool air flow. So, the first iteration was the Comet Racer: [ATTACH type="full" alt="100_2704.jpg"]61469[/ATTACH] I had good airflow to the head and the thick aluminum did not seem to bend. Scott was using David's front brake with the new shoes I made for them and he went to a different SLS brake. He used the LW cables with a mock bridge plate with two holes for airflow. There is nothing to bend in the system: [ATTACH type="full" alt="IMG_0110 C (3).jpg"]61470[/ATTACH] David's bike is on the right and Scott's is on the left. David's bridge plate provides lots of airflow and its only duty is to hold the front mudguard. Scott's is the more traditional Vincent set-up. David's braking improved greatly after going to this system. The design seems very effective, but most owners would prefer the original design over function. [ATTACH type="full" width="943px" alt="2017 04.JPG"]61471[/ATTACH] Mike Hawthorne split the difference by bracing the balance beam and then bolting it in place so it would not rotate. He then ran two cables to the balance beam. I don't know if this setup bends. It appears to be fairly sturdy. I think Dave's setup has proven to produce the best results with the least amount of weight. It is also easy to adjust. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Trevor Southwell re brakes
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