I found this link last night and I have made both the mods.
http://www.rcgroups.com/forums/showp...9&postcount=75
I found a couple weaker springs and replaced the 2 SUPERSTIFF springs in the front forks. I think my springs came from an old Tamiya buggy shock springs. I had to add a plastic tubular spacer for preload in each fork leg because the springs were shorter and weaker than the original. I also added a couple drops of silicon oil in each fork leg for smoother action. Now I have almost 3/4 inch of travel when I had NONE before.
I removed the rear shock and used a shock from an old Tamiya buggy. I used the original spring but I have less preload with the adjustment that is allowed by the new shock. The original shock., with no adjustablity, had to much preload and was to stiff. (See photo of rear shock).
I glued 2 1/3 oz. fishing weights to each leg of the rider. I glued the weights inside the leg at the hip joint. This definately allows the biker to turn sharper at speed. A whole new bike.
With these simple mods my bike is much better. I didnt get the front end wobble as much, but did get it a couple times. Still it is better and I will be looking into this problem. The slop in the top of the steering head I believe is there for better turning. Maybe with the weight in the rider...this slop can now be removed. More testing needed.
I only ran a quick test with these mods but the bike is better.
Lets keep up the ideas on these 1:5 scale toy bikes. I think we may be the only 1:5 HOR Bikers. I would hope to see more 1:5 HOR bikes in the future. I like the realism of the rider moving side to side and the size of 1:5 scale.
Regards,
Bill