jerry freedomev via EV wrote:
Hi Lee and All, I'm using some early Mazda Miata front hubs, brakes
that has retraction V shaped springs that with just a couple tiny
holes drilled in the pad for the wire spring end to fit, could fit
many disc brakes that don't have them stock. Likely able to do it
with just removing the tire.
That's a great idea. I'll have to look into that. My LeCar EV always has
dragging brakes. Like many, they depend on the roll-back of the rubber
piston seals as their "spring" to pull back just a tiny bit. Then the
calipers are supposed to be floating on pins, so that the slight runout
of the rotor and play in the wheel bearing are enough to push the pads
away from the rotor.
It doesn't work. The o-ring pullback is too little, the pad is just
loose between the piston and rotor (and tends to lay against the
spinning rotor), and the floating pins always rust up and won't move.
On Tire LRR common car tires are bad but MC tires are 2x's worse I
found on my Streamliner MC low CG chassis !! I'll have to find
better before doing the EV Streamliner, maybe even adapting LRR car
tires if I can't find a LRR MC tire.
I wonder why motorcycle tires are so much worse. Bicycle tires are
obviously very good. What is different about motorcycle tires. Is there
some fundamental reason for the higher rolling resistance, or is it just
that the manufacturers don't bother (and customers don't care)?
--
A designer knows he has achieved perfection not when there is
nothing left to add, but when there is nothing left to take away.
-- Antoine de Saint Exupery
--
Lee Hart's EV projects are at http://www.sunrise-ev.com/LeesEVs.htm
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