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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tyres
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<blockquote data-quote="druridge" data-source="post: 90954" data-attributes="member: 3754"><p>My set up for regular off-road use is : </p><p>The curved washer (if provided) next to the tube inside the rim; one nut locked hand-tight up against the valve cap. I always use the 'heavy duty 'tubes now.</p><p>I use security bolts to reduce tyre creep front & rear, when I raced an 888cc (90bhp) Yamaha-Wasp outfit we used to add 4 self tapper screws through the alloy rims into the sidewall of the tyre(!)</p><p>The trail rides I do now result in dirty water almost permanently between the tyre and the tube, that must be a slippy interface?</p><p>When off-road, the idea is to have no nut tight on the rim so that if the tyre does move, and takes the tube with it, this is quickly spotted as an inclined valve stem and corrected. The alternative is a ripped out or snapped off valve stem (I've been there). </p><p>I start with pressures at 14psi (F), 12psi (R), cant remember what they are supposed to be when 'warm', but its more about allowing the tyre to mould to the surface than getting a sticky road tyre to temperature.</p></blockquote><p></p>
[QUOTE="druridge, post: 90954, member: 3754"] My set up for regular off-road use is : The curved washer (if provided) next to the tube inside the rim; one nut locked hand-tight up against the valve cap. I always use the 'heavy duty 'tubes now. I use security bolts to reduce tyre creep front & rear, when I raced an 888cc (90bhp) Yamaha-Wasp outfit we used to add 4 self tapper screws through the alloy rims into the sidewall of the tyre(!) The trail rides I do now result in dirty water almost permanently between the tyre and the tube, that must be a slippy interface? When off-road, the idea is to have no nut tight on the rim so that if the tyre does move, and takes the tube with it, this is quickly spotted as an inclined valve stem and corrected. The alternative is a ripped out or snapped off valve stem (I've been there). I start with pressures at 14psi (F), 12psi (R), cant remember what they are supposed to be when 'warm', but its more about allowing the tyre to mould to the surface than getting a sticky road tyre to temperature. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Tyres
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