Numb Hands
Author
Discussion

rev-erend

Original Poster:

21,624 posts

315 months

Friday 15th February 2008
quotequote all
Bought a 96 ZX7R in Nov last year and took it out for it's first serious ride last weekend and those in England will tell you all it was glorious.

Sunshine, blue skies, warm with no wind and dry roads.

I did 130 miles and the bike performed very well nicely keeping up with a blade, blackbird, zx9r and some other 1000cc bike ..

Now my problem was that I kept getting a numb throttle hand - the clutch hand I could rest and take off the bars ..

It seems to happen at higher revs and as we were playing in the south downs I was letting the ZX7R do what it does best .. howl !

Did I mention it's got a full race full system Akropivich .. or how ever it's spelt..

The vibes were better if I just used 6th but that's slow and boring..

Has anyone else had this problem and how do you fix it ?

Leadfoot

1,918 posts

312 months

Friday 15th February 2008
quotequote all
Is this the 1st time you've ridden a bike with a "race" riding position (or have you been away from that type of bike for a long time)?

If it is, you might find that you're putting too much pressure on your hands & restricting the blood flow to your fingers = numb hand/tingling sensation.

Try & notice how much weight you're supporting on the palm of your hands next time you ride. If you're taking all the weight like this you need to change your position & bend your arms instead of having them out straight.

I used to own a &X7 with full Akra system & never had any vibe issues.


rev-erend

Original Poster:

21,624 posts

315 months

Friday 15th February 2008
quotequote all
Yes - been away for a while and you could be right
even with the extreme riding position I often put my feet back further.. I really like rear sets.. maybe I should try sitting properly all the time frown

but I did make a consious effort to ride with straight arms with bend the elbows .. taking the weight off the bars.. rather than the coat hanger stylee..

catso

16,530 posts

298 months

Friday 15th February 2008
quotequote all
I'm told that heavier bar-end weights should help absorb vibration (never tried it myself though).

beer

Biker's Nemesis

41,461 posts

239 months

Friday 15th February 2008
quotequote all
You may be inadvertanly holding on to tightly, roll the throttle in your palm, and make a conscious effort to stay relaxed.

Gripping to tightly will restrict the flow of blood to your fingers.

Hooli

32,278 posts

231 months

Friday 15th February 2008
quotequote all
catso said:
I'm told that heavier bar-end weights should help absorb vibration (never tried it myself though).

beer
sure does, one is missing off my bonnie & the bar shakes about 3 times as much as the other side.

roy e6

1,025 posts

263 months

Friday 15th February 2008
quotequote all
Maybe worth checking with your doctor, but it sounds like Carpel Tunnel Syndrome to me.

Dare2Fail

3,808 posts

239 months

Saturday 16th February 2008
quotequote all
Too much weight on the soft squishy bit on the palm of your hand perhaps (the bit at the bottom of your hand below your thumb)? I'd agree with the other suggestions that it sounds like a riding position issue. More weight on the balls of your feet, grip the tank with your thighs and don't use your hands to hold onto the bike, use them to steer the bike.

rev-erend

Original Poster:

21,624 posts

315 months

Saturday 16th February 2008
quotequote all
Dare2Fail said:
Too much weight on the soft squishy bit on the palm of your hand perhaps (the bit at the bottom of your hand below your thumb)? I'd agree with the other suggestions that it sounds like a riding position issue. More weight on the balls of your feet, grip the tank with your thighs and don't use your hands to hold onto the bike, use them to steer the bike.
Many Thanks All..

Gonna have to try changing the riding position .. I did notice that the last owner has put Renthal grips on - so I've no idea whether the bar end weights are original..frown

Rubin215

2,084 posts

227 months

Saturday 16th February 2008
quotequote all
Doesn't have to be from vibes or carpal tunnel; could even be your neck.

I have various neck and back problems after 25 years of competitive front-row rugby and found that much more than 30 minutes on my Blackbird gave me tingles in both hands.

Did an hour and a half once (long distance emergency...) and when I came down the slip road and rolled onto the front brake realised my hand had pretty much gone to sleep!!!
Still had movement, but no feel for what the fingers were doing.

Strangely, the 'Bird is the only bike that has ever done this to me though I have had the same problem when sleeping in a different bed (though not the front brake bit obviously!).

Hyperion

16,952 posts

231 months

Monday 18th February 2008
quotequote all
I think it's something you get used to.
When I first started commuting, my thumb got extremely painful about 25 minutes into the ride. But now it's fine and it doesn't happen at all.
Maybe your bones eventually mould into the grip smile

y2blade

56,322 posts

246 months

Monday 18th February 2008
quotequote all
grip the tank with your legs and release your grip on the bars

dern

14,055 posts

310 months

Monday 18th February 2008
quotequote all
y2blade said:
grip the tank with your legs and release your grip on the bars
Yep. Do that before you resort to surgery and bolting stuff to your bars wink

y2blade

56,322 posts

246 months

Monday 18th February 2008
quotequote all
dern said:
y2blade said:
grip the tank with your legs and release your grip on the bars
Yep. Do that before you resort to surgery and bolting stuff to your bars wink
i DO talk sense sometimes wink

biggrin

King Herald

23,501 posts

247 months

Monday 18th February 2008
quotequote all
roy e6 said:
Maybe worth checking with your doctor, but it sounds like Carpel Tunnel Syndrome to me.
You beat me to it. I've suffered from it for years on and off. There's pretty much nowhere else you'll keep your hand tensed in the same position for more than a few minutes, so it might not be an issue in normal everyday life.
I have had it on several bikes, and tried using different bars, different foam covered grips, made no difference. frown