RicK G

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AL-58 wrote: Saxon7 wrote:Interesting. I have been of the opinion that something up forward and high is necessary. Do you not get any flex in direction changes or right handers? ( Sidecar being on the left which is right)
Perhaps the front piece you have at the engine mounts counters this at that juncture?
I have a thing on mine where in directional changes in say, roundabouts where you go left, right under throttle and then back to left, still under throttle, the bike feels like there is flex and the bike itself leans further left into the right hand part of the exercise. Any thoughts on this? Maybe I need something in that area as a kind of damper...or to add rigidity?
Schoorn.
On my first K100/HRD sidecar (that did have a very hard life with lots of off road excursions even before I got it). The outer (right hand) frame downtube snapped above the engine mount. I still believe this was due to the frame above engine flexing because of lateral stress from the sidecar. I've heard of others also. my current one has a mount at the steering head and the feel is very different with no flex.
Al
The EML bert has is mounted at the base of the steering head and the Kneeler outfits for racing we used to put a tube directly to the steering head and brace it back to the left or right side of the top tube of the perimiter frame round the engine. I saw quite a few home built kneelers that had a frame built for the basic bike and then the platform tacked onto the side and they would always crack up and usually on the front top tubes.
That mount takes an enormous amount of stress when you go into a right hand corner with the chair on the left and vice versa.
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Bikes 2004 K1200GT 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki