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 Post subject: Re: Ully rear wheels
PostPosted: 25 Jun 2015 20:57 
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Joined: 06 May 2009 19:42
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Current ride: M2 Razorback
Location: Mouth of the Port in the Shire of Hamp
...unless it has a rim brake :idea: lOl
But on a 'normal' bike, which works hardest? In simple terms it must be the one which does its job of transition the fastest...
Did a bit of googling and it seems that a reasonable 0 to 60mph time is 3.5 to 4 seconds. Bit harder to find 60 to 0mph times (excluding reaction time as nothing is actually happening) but it seems that that too is around 3.5 to 4 secs...
That was a waste of time then! :rotfl:

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 Post subject: Re: Ully rear wheels
PostPosted: 25 Jun 2015 21:41 
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Joined: 15 Apr 2009 17:25
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It's got me thinking a bit too lOl . As I understand it, the major problem with tele forks is that they compress under braking and affect the trail. I imagine the forks may flex a bit too, adding to the trail alteration. Does the effective tyre contact patch where the Mass of the bike meets the road, move backwards as well? All these little things could add up to quite a significant change in chassis geometry.
Any thoughts?

Nowt to do with the wheel really, but having seen Robert Dunlops famous rear hub that broke up :shock: , I'd be very careful about anything except a good polish lOl

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 Post subject: Re: Ully rear wheels
PostPosted: 29 Jun 2015 10:35 
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Joined: 06 May 2009 15:15
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Current ride: XB12X
Location: Deutschland
Just about any vehicle on the road today can decelerate faster than accelerate, i.e. braking energy exceeds engine output and hence the loads reacted by brakes are typically higher overall. However most cars and motorbikes have twice as many braked wheels as driven wheels (excluding 4wd of course) but in the case of a bike (and especially a Buell lol) the vast majority of the braking force is transmitted through the front wheel either because the rear is off the ground or unloaded or with a Buell because the rear brake is usually almost useless ;) When you brake and weight transfers forward the forks compress and the rear suspension unloads effectively steepening the steering head angle and reducing the trail but at the same time the contact patch lengthens as the load on the tyre increases, whether this balances out I have no idea.

BMW of course have the telelever front end to stop dive and keep trail constant.

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 Post subject: Re: Ully rear wheels
PostPosted: 29 Jun 2015 12:00 
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Joined: 06 May 2009 20:20
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Current ride: Victoria Sponge
Location: Bristol - Gateway to all things good
I'm staying out of the argument, I just want to see the finished product in action...

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