Hi to all ebikers out there..

jamieb

Just Joined
Nov 25, 2013
1
0
Hi to you all, im jamie, loving the ebike scene, love to cycle but a tad lazy! had a few generic e - mountain bikes, now im up to a ktm e-shopper........er....um......not that impressed to be fair. the rrp of £2500 is not worth it but as i paid less than grand brand new, it is worth that all day long. Mine has an inherent 'tank slapper' (bar wobble) at ALL speeds if u take your hands off the bars (to all those who say dont take your hands off the bars i have 1 arm due to a motorbike accident so to scratch ones nose, adjust things etc i must be hands off momentarily now and then) and i think ktm knew this as the bike is fitted with a STEERING DAMPER! Namely an adjustable spring from the front forks to the frame down tube of the 'wave' frame. it doesnt work. i have experimented with- tire pressures, weight over front wheel (in my shopping basket!) but it still shakes the bars violently as soon as the rider goes'hands free'. any one got any idea as to how i can rectify this? i can video this 'tank slapper' action and put it on youtube if any one cares... as i think to sell a 2.5 grand bike with a handling problem is a bit cheeky, bearing in mind a £20 steering damper/spring was added to rectify this issue! other than that, i will concur, the ktm sorry bosch crank drive, battery, charger, range, response, visual display etc etc IS ALL EXCELLENT. As are the shimano alfine hydraulics, so credit where credit is due, but all ktm do is weld up the frame..?
 
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Deleted member 4366

Guest
The wobbling bars is due to the steering geometry. Nearly all modern MTBs are like that so that you can get quick steering on trails. The only way to improve it on a MTB is with forks that sweep forward at the bottom, but your bike has special forks, so it looks like you're stuck with it. I must admit that it's unusual to get that on a shopper bike.
 

RobF

Esteemed Pedelecer
Sep 22, 2012
4,732
2,312
Modern bikes seem harder to ride no-handed.

Used to do it all the time as a child.

I can remember we set ourselves a challenge of riding no-handed to school - more than two miles.

Must be down to geometry as d8 says.

I've seen roadies ride no-handed.
 

jackhandy

Esteemed Pedelecer
May 20, 2012
1,820
323
the Cornish Alps
Modern bikes seem harder to ride no-handed.
.
:rolleyes:
I thought it was just me

Had many an earwigging from 7-foot-tall coppers when I were a lad, for riding no hands, but haven't been able to do it for years now.
 

Geebee

Esteemed Pedelecer
Mar 26, 2010
1,256
227
Australia
Just to cover the bleeding obvious, the head tube bearings are correctly adjusted, the wheel is aligned horizontally and vertically, I have a folder that the wheel wasn't centered verically and rode fine as long as 2 hands were on the bars, with one or almost none it would shake (tank slap) adjusted the spokes to center the out of round and its fine with one hand now.

Now for a more extreme fix :) if you have a smaller wheel (24~20") that will fit the back try it as it changes the rake of the front forks and can make a twitchy bike very stable.