BDamari wrote: ↑
Jun 04 2020 5:22am
I want to build a 100kmh/60mph machine.
Even Tony (Vortecks on Youtube) has top-notch mtb suspension on his most recent build, and he said it himself: no
Can you achieve a ride almost as comfortable as a motorcycle with mtb suspension?
I got the little 205V1, right under 10Kg. I just bought a V3 to play with also, cause my V1 overheats to much.
It is installed in an excellent MTB suspension system, aluminum bike for a total of 85lbs on a 40lb bike. Handles the road great upwards of 47mph. No weaves, wobbles, bottoming, or topping out. No slams, no weird things. When it comes to handling. Hey even jumps like a horse.
Tony is wrong, or a bicycle rider, but not a motorcycle racer. Why in the world would you tune your suspension "Soft" for speed?
Speed means hard. When I first got my ZX10r I was surprised by how hard it was sprung... and the same with my ZX9r. Kinda silly making them compress on a flick in after a braking.... they dont move to far.. from up high there... You have to be going into the turn at like 130mph or else you wont compress.. lol.. I had a CBR that was so soft it was comical. Bottom on a hard wheelie.. but it was a comfy commuter.
Racing motorcycles use hard springs, soft is a NO GO for speed. Race cars also use HARD springs. Like 2" travel. Not the 4"-6" of MTB.
The race track better be flat. Lol. For the speed. Travel is not needed for a true speed machine.
Travel is for soaking up bumps and not bouncing your girlfriend off the back. Dont go fast with your girlfriend on the back on a racetrack, pls.
My ebike is soft, very soft with lots of travel with a freeride triple tree 110mmx20mm fork with replaceable spring. I may go harder in the front. The fancy 4-point suspension is amazingly good in the rear.. the front fork could be better, but I never had a problem with the progression of load on the DW Link 4-point. I am sure there are junk suspension systems out there that are.. junk. Single pivot, or pivots on the rear triangle, I try to stay away from these designs for ebikes, they are weak and do not articulate well. Triangle must be strong. My bike is great on road, I am sure it could do 60-70mph easily with good stability.
I have a 600 lb spring on the rear and it feels fine. I do not notice the weight of the medium heavy hub much at all... No slams or jars... unless you hit the bank wrong on an angle , the mass of the motor will "jar" the bike a little. Not much, but you know it is not good for the bearings on the bike frame ( and probably not the best for the frame in general.)
Suspension tuning for the square bumps round bumps, hills, fast vs slow, ect.... and the use case ....is tuned for the ride, and rider. Cant have both. On potholes and manhole covers in suburbs my bike is fine at its 40mph. Even though it is a 5" MTB "Free Ride " bike... with lots of soft travel.
I'll let you know how the bigger motor feels, but I do not think it will be to much trouble, on an on road bike. It is only about 10lbs more than my V1.
If you have a very hard suspension on a normal road, ( car or bike) ( not a race track velvet smooth, or a dirt trail jump-off-the-bump)... the hard spring just makes you bounce a little . Bounce bounce. At low speed. Over potholes and expansion joints.. manhole covers.. ect.