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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tuning Front Brakes?
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<blockquote data-quote="Monkeypants" data-source="post: 1929" data-attributes="member: 2708"><p>It is worth noting that there are 3 different offsets (centre pivot to centre of nipple distance) available for the brake (and clutch lever) These are 7/8", 1" and 1-1/8". The 1-1/8" provides the least leverage and greatest movement- ideal for the clutch in order to get sufficient lift. The 7/8' offset provides the most leverage and least amount of movement. I have this type lever for my front brake.</p><p></p><p>The brake is a standard Vincent setup but with the lightning back plates and finned drums. Linings are the old Green carcenogenic type.</p><p></p><p>The brake works almost too well. Loaded two up with gear it will lock the front wheel quite easily on wet roads. A firm pull will also cause it to lock up on dry roads. The back brakes will also lock the wheel fully loaded.</p><p></p><p>The brakes held nicely on a 25% downhill grade on a very narrow twisty B road in the Penines. This was also with full gear and two up. The sign at the top of the grade said 25%, which I thought was impossible. 8% is a steep mountain road in British Columbia, 25% is a goat trail.</p><p> Once on the grade, I no longer questioned the sign, it was the steepest grade I have ever gone down with a road bike!</p><p>Along with the engine hold back in low gear, I had enough braking power all the way to the bottom, perhaps a mile or so, with enough reserve braking to make a full stop at the stop sign and T junction at the very base of the hill.</p><p></p><p>My Norton Disc brakes are not even close in performance to the Vincent brakes. The Norton brakes require more effort and fade to almost nothing after coming down from 70 MPH to 20MPH a couple of times in succession.</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 1929, member: 2708"] It is worth noting that there are 3 different offsets (centre pivot to centre of nipple distance) available for the brake (and clutch lever) These are 7/8", 1" and 1-1/8". The 1-1/8" provides the least leverage and greatest movement- ideal for the clutch in order to get sufficient lift. The 7/8' offset provides the most leverage and least amount of movement. I have this type lever for my front brake. The brake is a standard Vincent setup but with the lightning back plates and finned drums. Linings are the old Green carcenogenic type. The brake works almost too well. Loaded two up with gear it will lock the front wheel quite easily on wet roads. A firm pull will also cause it to lock up on dry roads. The back brakes will also lock the wheel fully loaded. The brakes held nicely on a 25% downhill grade on a very narrow twisty B road in the Penines. This was also with full gear and two up. The sign at the top of the grade said 25%, which I thought was impossible. 8% is a steep mountain road in British Columbia, 25% is a goat trail. Once on the grade, I no longer questioned the sign, it was the steepest grade I have ever gone down with a road bike! Along with the engine hold back in low gear, I had enough braking power all the way to the bottom, perhaps a mile or so, with enough reserve braking to make a full stop at the stop sign and T junction at the very base of the hill. My Norton Disc brakes are not even close in performance to the Vincent brakes. The Norton brakes require more effort and fade to almost nothing after coming down from 70 MPH to 20MPH a couple of times in succession. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tuning Front Brakes?
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