I don't need to read the FIM rule book to look at a WSB spec bike and a road bike side by side to see they're not _really_ anything alike.....
OK the frame, and engine cases are the same, as is the crank/rods, gearbox internals.the injection system and airbox are too. oh and the sprocket carrier....
what else?
Not much really, so what's different?
They can spend 10,000 euro on the swingarm for fucks sake, are you sure i'm the delusional one?
Brakes, rotors, m/cyls, lines, hoses, calipers, all of it. ABS removed too.
Suspension Rear shock, forks, triple clamps, linkage, yep, all of it..
Wheels, both of em... and tyres
Fairings, tank size (bigger) and construction (no carbon fibre tank though, but Al is allowed
switchgear, ECU, wiring loom, they have a rain light.
Engine construction, all hand built, clearanced balanced, lighter pistons, low friction rings etc
Ti hardware almost everywhere,
Fuck, i'll go out on a limb here and say that a set of forks off any WSB spec bike cost more than almost any standard bike they're based on!
More road bike than i think? no, there's road bike in there, for sure, but they're seriously trick in their own right and ANY form of racing let alone at the world championship level means that teams will do whatever they can to gain an edge, they spend money wherever they can within the rules to go faster, it's the nature of the sport, cost cutting has made them less so but they're still bristling with exotic materials, super expensive parts and technology, stuff that will never find it's way onto a showroom stock bike, ever.