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Gearbox issues?
19 posts · Started by bonehead · 25 Jul 2007
Post 2 by baggieman,
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Post 3 by OldYelr,
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Post 4 by Spyder,
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Post 5 by bonehead,
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Post 6 by Ducati Pete,
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Post 7 by bonehead,
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Post 8 by arashi,
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Post 9 by OldYelr,
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Post 10 by Dr F,
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Post 11 by -JP-,
#11During Tuesday's practice at the track, I had a couple of times when, during aggressive downshifting after a long straight, I would "lose" the gear. It'd be full throttle, hard brake, fourth, third, bam, bam, then just a big fooking rattle instead of second gear. When you're in a fast group of riders and have to brake late and go hard on the throttle in order to overtake sportsbikes, it almost got me rear-ended.
The first time I took the escape, went into the pits and looked at the bike. Didn't find anything.
The second time, I just kicked another gear in, cursed a bit (ok, a lot), and thought about what new underwear I should get as the ones I was using probably were full of poo as the R1 I had overtaken almost took my rear wheel out.
Any ideas? Is this a common issue? Again, the bike is a 2009 SuperDuke R.
The first time I took the escape, went into the pits and looked at the bike. Didn't find anything.
The second time, I just kicked another gear in, cursed a bit (ok, a lot), and thought about what new underwear I should get as the ones I was using probably were full of poo as the R1 I had overtaken almost took my rear wheel out.
Any ideas? Is this a common issue? Again, the bike is a 2009 SuperDuke R.
Post 12 by Al3x,
#12I had some small issue getting clean shifts at first. I think the SD gear box is quite agricultural and the distance the gear lever has to travel to is pretty long, making shifts difficult. I got used to it pretty quickly though.
Post 13 by -JP-,
#13I just did a trackday too. I have the same experience, also with 'spirited' road riding;
going down the gears even very aggressively works fine for me if you allow a second or 2 for the motor/box to rev through the gear with the clutch out and also change firmly (and when tyres are warm the rear tyre doesn't slip too much -it does when cold), but trying to go through more than 1 gear at a time usually results in a box of spanners - i.e. tapping down 2 gears at once even with a little throttle rev in between often results in a false neutral.
going down the gears even very aggressively works fine for me if you allow a second or 2 for the motor/box to rev through the gear with the clutch out and also change firmly (and when tyres are warm the rear tyre doesn't slip too much -it does when cold), but trying to go through more than 1 gear at a time usually results in a box of spanners - i.e. tapping down 2 gears at once even with a little throttle rev in between often results in a false neutral.
Post 14 by boney95,
#14Yeah, that's probably it.
I'll have to look into it when I install the HM Quickshifter.
Cheers, mates.
I'll have to look into it when I install the HM Quickshifter.
Cheers, mates.
Post 15 by Lowrance,
#15I had two false neutrals at the track the other week too. No power through a turn is not cool.
Post 16 by Al3x,
#16I blip the throttle during down shifts (to match engine speed with road speed) for each cog selected and have not had any issues. One RH corner at the end of a realitively long straight required three downshifts (5th to 2nd) through a LH kink and bliping the throttle worked fine for me. Was wishing for a slipper though.
John
John
Post 17 by BASH69,
#17The throw feels really long for me compared to my other bikes. That was my biggest problem I think, not following through on the motion
Post 18 by Lowrance,
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Post 19 by Lowrance,
#19A common problem for some unfortunatly! It seems with the SD boxs you either get a good-un or a pig!
Mines a pig! Street riding it never misses a gear (or maybe that should be i never miss a gear) but when on track in the heat of fast down shifts it only takes a tiny lapse in concentration and you end up in a neutral hole of clicking grinding cogs with no apex in sight
This is 1 box that you have to be really really positive with!!!!!!!
Mines a pig! Street riding it never misses a gear (or maybe that should be i never miss a gear) but when on track in the heat of fast down shifts it only takes a tiny lapse in concentration and you end up in a neutral hole of clicking grinding cogs with no apex in sight
This is 1 box that you have to be really really positive with!!!!!!!
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