I’m planning a build for the following season
and some dope stuff like the DAVEGA from @janpom, metr pro, RGB underglow, neptune 15 bypassed for discharge and some bright LED front lights
the thing that grinds my gears is the drivetrain. I can comfortably say that I need the trampa 6376. the problem is that I have no clue of the following:
I’d like to run with the motors not under deck (is it somehow called?) and with dropped-through trucks
mounts option 1 - boardnamics
I’ve been riding @Boardnamics mounts without the idlers, unfortunately, as they fit calibers I had to “fix” them a little with a file. the thing is that I do not feel so secure on the board in 55+ kph partially because of belt skipping.
boardnamics also offer mounts with idlers, which I’m not sure would fit - I’m especially concerned with fitting a bigger pulley and still having some space for the belt.
on positive side, I already have the filed clamps for the fatboys which are rock solid. slight bending can be compensated with two rods holding the mount behind the motor. not sure here about the clearance with the trampa motors
- do have idlers
- I already have the hanger clamps
- no clue if there will be clearance for 7" or 8" tires
mounts option 2 - trampa
trampa mounts for 12-fifties which are @Trampa , should fit the fatboys, but also with some tinkering. the 12-50 hanger should be 19.8x19.4mm and fatboys are 18x19mm. I’d have to make new middleplate for the fatboys or use a lot of locktite on bolts to fix them in place
they can’t be fixed with rods behind the motor but are carbon fiber which should flex, not bend
positively they provide motor axile support but the pulleys they provide suck, more on that later
- its trampa, it shoud hold (flex ) strong
- oversized motor axle will be hidden in “motor axle support”
- no idler, belt skipping is inevitable
- no clue if have enough clearance for 7" or 8" wheels
pulleys option 1
go with the trampa mount. pulleys are included, but wrong for my usecase. on 7" tires, 15 teeth motor and 62 wheel pulley on 12S is it 45kph. slow!
if I changed motor pulleys for 18-20 teeth there will probably be no place to put it, as the axle support will be in the way.
pulleys option 2
boardbumpers 58. its nice/bad they are not screwed to the wheel. not sure about that. I’m neither sure if they will fit the fatboys.
these would have to be paired as well with 18-20 teeth motor pulleys for sufficient speed
it’s a shame there is no “standart” usage of belts wider than 15mm. with wider belts there might be no need for idlers
it looks like the trampa kit is out of the game for me because of the low gearing ratio
what do you think? are there any other options that should be considered?