dogman dan
1 PW
Now I can't find the thread where battery placement was being discussed on this bike. Too many posts, too few brains.
So I'll just pick up the subject here, with a proper build thread on this bike. The bike is a Yokota Quicksilver, vintage after 1 1/8 headset came in, but before canti brakes went out. Cromoly no suspension 26" MTB. Of many many used bikes I bought to trade with at the used bike shop, this one rode too good to trade away, so I figure it might make a good platform for practicing high speed cornering for racing. Canti brakes replaced with V brakes, Handlebar stem and handlebars mounted upside down. 56 tooth crankset added mostly for cool looks. 72v lipo will make pedaling less likely.
There is room in the triangle for some batteries, but I still have the idea I'll actually race on a bike with full suspension that has no triangle space. Most likely the Giant, depending on what 72v does to steel dropouts. So I want to work out battery solutions for carrying the battery, about 10 pounds I think, on the rear. Initially, I will likely just use this box, with some coroplast spacers inside to keep em put.View attachment 1
But the plan I've been working on is for two metal and wood panniers designed just for 5000 mah lipo in 5s or 6s. Four per pannier, with each block of lipo cushioned in a coroplast sleeve. It should be easy to swap out packs between heats with this system, and they will be very well protected if I lay it down.
In the pic, the cardboard box is a mock up of the size and shape I'll be making the pannier boxes.
The panniers will be about 2.5 inches wide, and should fit nicely into the wind shadow of my legs. Possibly coroplast fairings from seatpost to the boxes? And some kind of fairing on the bars?
Edit... After a quick test ride at 48v,,,, maybe this is the race bike. It corners sweet with all my weight lower than on a fs bike. 15 pounds of battery on the rear wheel felt fine to me. But I could easily fit 4 bricks of lipo in the triangle, just have to work out how to quick change them.
So I'll just pick up the subject here, with a proper build thread on this bike. The bike is a Yokota Quicksilver, vintage after 1 1/8 headset came in, but before canti brakes went out. Cromoly no suspension 26" MTB. Of many many used bikes I bought to trade with at the used bike shop, this one rode too good to trade away, so I figure it might make a good platform for practicing high speed cornering for racing. Canti brakes replaced with V brakes, Handlebar stem and handlebars mounted upside down. 56 tooth crankset added mostly for cool looks. 72v lipo will make pedaling less likely.
There is room in the triangle for some batteries, but I still have the idea I'll actually race on a bike with full suspension that has no triangle space. Most likely the Giant, depending on what 72v does to steel dropouts. So I want to work out battery solutions for carrying the battery, about 10 pounds I think, on the rear. Initially, I will likely just use this box, with some coroplast spacers inside to keep em put.View attachment 1
But the plan I've been working on is for two metal and wood panniers designed just for 5000 mah lipo in 5s or 6s. Four per pannier, with each block of lipo cushioned in a coroplast sleeve. It should be easy to swap out packs between heats with this system, and they will be very well protected if I lay it down.
In the pic, the cardboard box is a mock up of the size and shape I'll be making the pannier boxes.
The panniers will be about 2.5 inches wide, and should fit nicely into the wind shadow of my legs. Possibly coroplast fairings from seatpost to the boxes? And some kind of fairing on the bars?
Edit... After a quick test ride at 48v,,,, maybe this is the race bike. It corners sweet with all my weight lower than on a fs bike. 15 pounds of battery on the rear wheel felt fine to me. But I could easily fit 4 bricks of lipo in the triangle, just have to work out how to quick change them.