Question about 2003 Aprilia Tuono 1000

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Front brake lockup crash Tuono More

I just picked my new Tuono 2007.5 and on the second ride 190 miles on bike used the front brake and it locked up. I fell at about 50 mph. It was a complete surprise to me. I have been riding all of my life and this was my first time down. I had no Idea what had happened. The Left front brake caliper bolt had come out allowing the rotor to push up and twist the caliper into a bind. I am up and around now called the dealer; they sent a guy to pick up the bike to see what they can do for me. I will repost when I see what the dealer and Aprilia will do for me. Check your brake mount before riding. Just came back from the dealer. I just came back from the dealer and was told this cannot happen because the there is a flange that seats into the mount from the caliper and prevents twisting. So we took one apart and there in not any flange just the caliper that fits flush against the mount and can and did twist and bind. I am sad because I like the owner and the dealer and am surprised they are trying to weasel out of this. I should know in a couple of days if they are willing to fix my bike. I really don’t want to go the attorney route but this is hard to let go. I will post the results Now go toque down your calipers. Thanks all

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Looks as if it was not PDI'd properly. I would be looking to the dealer to put it right

Posted on Nov 10, 2008


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The study, by the Insurance Institute for Highway Safety, found that anti-lock brakes dramatically reduced the chances of overturning a bike and crashing.
A separate study, by the affiliated Highway Loss Data Institute, found that insurance claims dropped by 21 per cent for bikes fitted with the technology.
In a report on the study, the president of both organisations, Adrian Lund, says anti-lock brakes are life-savers.
“It’s a way to reduce the chances of overturning a bike and crashing, so it can save lives,” says Lund.
While the introduction of ABS on cars didn’t deliver any noticeable reductions in fatal car accidents, Lund says it’s clear that widespread adoption of the technology on bikes would have a much bigger effect.
“It isn’t surprising that anti-lock brakes are more beneficial on motorcycles than they are on cars because the two-wheelers are so much less stable and it’s this instability that leads to crashes,” he says.
The braking process on a bike is more difficult than a car because the front and rear wheels typically have separate braking systems. The front brakes are more effective for stopping fast, but hitting them too hard can make the front wheel lock up and pitch a rider off the bike.
Lund says that some bikers hold back on the brakes for fear of locking up, only to find they haven’t braked hard enough to avoid a collision.
ABS systems use sensors to adjust the brake pressure continuously, ensuring that the wheels never lock up and the rider can continue to steer in an emergency.
The HLDI study compared insurance losses for 12 brands of bike with and without anti-lock brakes, finding that insurance losses were 21 per cent lower and claim frequency was 19 per cent lower with ABS models.
The IIHS study studied eight brands and found there were 6.6 fatal accidents per 10,000 registered bikes without ABS and 4.1 accidents per 10,000 for bikes with ABS.
In a statement released to coincide with the study findings, local bike insurance specialist Swann Insurance says the studies support its call for more car-like safety items to be included on motorcycles.

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