Stroke is the length of the rod, meaning how much movement the damper will allow. Too little and it becomes the steering lock - not good (nor allowed in racing). Too much and it may interfere with other bits of the bike.
I don't know the length, and to be honest you don't need it. _________________ MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball
Can't argue with that then! _________________ MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball
Monkey, Cant answer your question, but i have one on my MC18 , if the 21 has it in the same place, weather you want one or not the fecking thing gets in the way....try before you buy. If you can!
I was thinking of picking one up too because my friend said it would increase stability on the highway. Is that the only thing it does? Can you feel a difference on the street? Why do most people have it?
ne14surf wrote:I was thinking of picking one up too because my friend said it would increase stability on the highway. Is that the only thing it does? Can you feel a difference on the street? Why do most people have it?
I didn't have one on. Not on an ns250 though. But anyway, I just hit a small bump on the hi-way and it just "tank slapped". A "tank slapper" or "Head shake" is when the steering just violently shakes from left to right, Usually caused by the miss-landing of the rear wheel or the front. there are certain ways to correct it. A steering damper is a definite vote in my account
nsrmonkey, rc46 is right, the damper gets in the way. It takes more than a 2 lane street to make a U-turn. But it feels great to have one on. _________________ ride it like a horse
rc46 wrote:Monkey, Cant answer your question, but i have one on my MC18 , if the 21 has it in the same place, weather you want one or not the fecking thing gets in the way....try before you buy. If you can!
sell it to me then
when you say it gets in the way what do you mean _________________ MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold
If the NSR is tank slapping on the street, you probably have some other issues, like bearings, tyres or suspension setup. They really aren't needed for 99% of riders / bikes.
They also should not restrict the steering - that what lock stops are for. If they do, you need a longer one!
How about inventing an electric one using eddy current braking Monkey? _________________ MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball
rc46 wrote:Monkey, Cant answer your question, but i have one on my MC18 , if the 21 has it in the same place, weather you want one or not the fecking thing gets in the way....try before you buy. If you can!
sell it to me then
when you say it gets in the way what do you mean
LOL, Actually the 18 just sold on ebay this afternoon i got my buy it now price, which makes a change. The 18 has the damper on the left hand side, connected to frame and then left hand fork leg, when i do left hand locks (could be the clip ons , they are not standard) it traps my fingers if im not careful. It dosent seem to turn all the way either so u turns are no go. Also when i got the bike the damper was dialed in. I backed it all the way off for cadwell as you just cant feel whats going on at the front. Never had a shake once... and if i can add i also had one on my SB6 which shaked its head loads of times but i still took it off as feedback on the road and track was vastly improved when it was taken off....Monkey try one first, I think youll change your mind. They may look cool, but you could put some of that dosh to braided hoses, or modded airbox, maybe some nice clip ons.
I second that. If you're getting serious shake like that then you've got a problem.
I've ridden my NSR on numerous tracks and the only one where I 'needed' it was one with elevation changes and bumps. There's a particular section where you have to transition the bike up the hill and ... anyway to cut a long story short, the experienced racers say you don't 'need' the steering damper, it just makes some people who are squeemish a little bit more confident, as it eliminates some scary feeling.
Only time I've noticed a serious improvement from a steering damper was on the same circuit in the same place but on a CBR600RR with very little trail set up for a heavier rider. It would wheelie me in the transition and I wouuld land the front off a bump whilst heavily leaned over, then again at the crest of the hill the front just flies up ... here's a picture (not me)
i have a 110mm stroke one on my 21
fork leg mounting bracket from dbr
i dont have no problems with steering look with my set up _________________ Half the strokes, twice the fun
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