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Dave.... |
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Dave.... Trackday Trickster
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ScaredyCat |
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ScaredyCat World Chat Champion
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Dave.... |
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Dave.... Trackday Trickster
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bamt |
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bamt World Chat Champion
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lihp |
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lihp World Chat Champion
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Ste |
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Ste Not Work Safe
Joined: 01 Sep 2002 Karma :
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Posted: 11:40 - 24 Sep 2016 Post subject: |
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Sell road bike > get mountain bike > winrar.
What frame is it? |
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Dave.... |
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Dave.... Trackday Trickster
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Ste |
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Ste Not Work Safe
Joined: 01 Sep 2002 Karma :
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Posted: 13:33 - 24 Sep 2016 Post subject: |
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Check that the wheels are true.
You want your weight to be the pedals and not the saddle.
Loosen your grip on the bars.
Pros put a knee against the crossbar to dampen speed wobble, whether or not it's quite that straightforward is another matter. |
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stinkwheel |
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stinkwheel Bovine Proctologist
Joined: 12 Jul 2004 Karma :
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Posted: 19:07 - 24 Sep 2016 Post subject: |
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One of several reasons why I wont have a carbon framed bike. My understanding is vagueness and upredictability when descending is a "feature".
Get a steel frame and descend like a bat out of hell.
I'd imagine it's got a lot to do with an overly short wheelbase, tight rake ange and weight forwards riding position. ie. everything that makes it go fast. Some modern racer bikes are so tucked under at the front end, the front wheel hits my toes when I steer.
If you had a set of forks with more rake on them, I bet it would settle down.
EDIT: Just a thought. Does it happen when you're pedalling or when you're coasting?
If you're coasting, the strain in the wheels is being taken up by the leading spokes rather than the trailing ones. So your wheels can be true when at rest and when under power buty move out of true when coasting or braking. Modern bikes tend to have really small numbers of spokes which exascerbates the problem (Mrs stinkwheels race wheels are 16 spoke half-radials which to me is madness on a road bike).
The solution to that is not to coast down hills. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
Last edited by stinkwheel on 19:13 - 24 Sep 2016; edited 1 time in total |
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Wafer_Thin_Ham |
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Wafer_Thin_Ham Super Spammer
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defblade |
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defblade World Chat Champion
Joined: 30 Apr 2009 Karma :
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Posted: 10:24 - 25 Sep 2016 Post subject: |
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Another vote for truing up the wheels.
I actually find the job strangely relaxing.... ____________________ Honda Varadero 125cc => Suzuki Bandit 650 33bhp => 77bhp =>
BMW K1200R Sport 163bhp => Aprilia Shiver GT 750 95bhp |
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Dave.... |
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Dave.... Trackday Trickster
Joined: 13 May 2016 Karma :
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lihp |
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lihp World Chat Champion
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Seb |
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Seb World Chat Champion
Joined: 19 Jul 2007 Karma :
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Posted: 14:34 - 25 Sep 2016 Post subject: |
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As stated, don't let your legs go limp, if you're heart rate isn't going up on a descent, you're not trying hard enough
Keep your weight going through the pegs and squeeze the top tube with your knees. Whilst tucking is important, don't put yourself in a crazy position where you're upper body is ends up being rigid to hold it. ____________________ 2010 Triumph 1050 Sprint ST |
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Dave.... |
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Dave.... Trackday Trickster
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Ste |
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Ste Not Work Safe
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duhawkz |
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duhawkz World Chat Champion
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Dave.... |
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Dave.... Trackday Trickster
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mudcow007 |
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mudcow007 World Chat Champion
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Dave.... |
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Dave.... Trackday Trickster
Joined: 13 May 2016 Karma :
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Posted: 22:20 - 14 Mar 2017 Post subject: |
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No issues at present with other bike I have as it is attached to a Tacx trainer.
Which presents a shit load of other issues |
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UnknownStuntm... |
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UnknownStuntm... World Chat Champion
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Dave.... |
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Dave.... Trackday Trickster
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Old Thread Alert!
The last post was made 7 years, 88 days ago. Instead of replying here, would creating a new thread be more useful? |
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