Right !,
Just coz I'm an awkward git I decided I wanted a big fat 'hin end on my
new bike. As luck would have it, primarily due to rich folk buildin' £40k
Harley Bolt togethers that Avon started makin' some big huge tyres, frrrrr.
There's
a low profile 250, but I preferred the bigger fatter profile of the 240.
Herein lies the first challenge, what wheel to put it on, ye can't get any stock wheels (that I know of) to to fit. Getting a wheel built was gonnae be the wrong side of £700, wassat, about $1000 ?
So it was off to my local boy racer's store where I picked up an Oz Racing Volcano car wheel for £100,
The conversation was as follows,
Me
: "I'll have one of your finest Oz Racing Volcano Wheels my good
man"
Plooky young salesman : "Howzat Mr, ye need
at least four"
Me:
"Nah, it's for a motorbike"
Pregnant Pause ------------
Plooky young salesman : "But they're for cars,
they don't fit on motorbikes"
Me:
"Want a chuffin' Bet !"
Off I went with me wheels to Jk's to get the tyre fitted, Jimmy doesn't even ask questions any more, he's seen too many of Marty's bikes to ask questions, I think he's afraid of what the answer might be.
So it's time to make the bugger fit onto a bike, this requires the fabrication of something resembling a hub, who's purpose in the universe is to a) hold the brake disc, b) hold the sprocket and transfer the drive to the wheel and of course c) keep my arse off the deck.
First port of call, a fat tube (no, not Jo Brand) of CDS, once destined for the north sea, dressed and sized accordingly. It should fit, I measured it accurately with a slice of bread and a door handle.
Next, a bit of 15mm plate machined to take wheel studs off a Nissan Micra,
Cutting a rough circle from 15mm plate with a grinder is a bastard, but since I don't have oxy or a plasma cutter it was quicker than a hacksaw.
Next, more bits of plate machined to take the sprocket,
This took a lot of head scratchin' so much so that I wore mine out and had to start on Marty's. In the end I decided to mount the disc outside the sprocket, orginially I'd considered it being inside but it meant that the forces were all wrong on the mount for the caliper, it was so far from the swing arm that the torsional force would have ripped it off.
Next: Some wheel adjusters to weld onto the swing arg, that I haven't made yet. Visualise, visualise with a judicious dose of blind optimism, "of course it'll come together in the end. Ha!
A couple of bits of square bar were machined and welded onto some tube then drilled, tapped.
