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General Minitrail Talk
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First time adding displacement.
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<blockquote data-quote="69ST" data-source="post: 97860" data-attributes="member: 5"><p>If the existing crank isn't in tiptop condition, a 52mm stroker crank may be cheaper than a crank rebuild. Who's going to know that your engine is packing a long arm, unless you tell `em? :3: Going to 54mm bore requires having the cases bored. However, the larger bore further unshrouds the valves, an advantage at high rpm...which translates into peak hp/mph. With the right head & cam choice, 70mph is possible.</p><p></p><p>As for the assertion that anything above 50mph is "overkill"...huge can of worms, open to lengthy discussion and individual opinions...<em>it just depends</em>. Death wobble is highly unlikely, unless you're running a worn K0 front end. IMO, the K0 pogo sticks are unsuitable for anything much beyond stock speeds, unless you ride on the worlds smoothest pavement. With a properly setup K1-later front end and some good aftermarket rear shocks, a CT can cruise along drama-free at 50mph over reasonably decent pavement. The real rough stuff can bottom-out the front suspension a little too easily, at speed. Stock brakes become progressively ineffective as you go beyond 50mph. Rider judgment, in the form of avoiding potholes and knowing to compression-brake down to the low-50s, before grabbing a handful of front brake, can be sufficient for most riding situations as well as the occasional banzai blast into the low 60s.</p></blockquote><p></p>
[QUOTE="69ST, post: 97860, member: 5"] If the existing crank isn't in tiptop condition, a 52mm stroker crank may be cheaper than a crank rebuild. Who's going to know that your engine is packing a long arm, unless you tell `em? :3: Going to 54mm bore requires having the cases bored. However, the larger bore further unshrouds the valves, an advantage at high rpm...which translates into peak hp/mph. With the right head & cam choice, 70mph is possible. As for the assertion that anything above 50mph is "overkill"...huge can of worms, open to lengthy discussion and individual opinions...[I]it just depends[/I]. Death wobble is highly unlikely, unless you're running a worn K0 front end. IMO, the K0 pogo sticks are unsuitable for anything much beyond stock speeds, unless you ride on the worlds smoothest pavement. With a properly setup K1-later front end and some good aftermarket rear shocks, a CT can cruise along drama-free at 50mph over reasonably decent pavement. The real rough stuff can bottom-out the front suspension a little too easily, at speed. Stock brakes become progressively ineffective as you go beyond 50mph. Rider judgment, in the form of avoiding potholes and knowing to compression-brake down to the low-50s, before grabbing a handful of front brake, can be sufficient for most riding situations as well as the occasional banzai blast into the low 60s. [/QUOTE]
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First time adding displacement.
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