JZH

You can't buy just a race, and even if you could, you wouldn't want to... I've never purchased these from Honda, but the Honda part number I've got in my files is 91015-425-832, which is supposedly for a 26 47 15 upper tapered roller bearing and race. Didn't know Honda fit tapered rollers to the RC51? Look like ball bearings on the fiche to me... Ciao,

I thought so, was a bit misled because i see a lot of UK bikes over here on the mainland with small plates. Yes your prime minister learned a lot during his trips to the netherlands! At least youre alowed to have radardetectors, there almost an capital offence overhere and the police love their radardetectordetectors (hows that for scrabble) Well, yes and no... There isn't a "regulation size" numberplate in the UK, but there are numberplate regulations that govern the size of numberplates...Which are not generally "homemade" in the sense of you making it in your garage, but they are made for the bike's registered "keeper" by private companies/shops and not issued by the government. Most people in the UK are under the misimpression that UK motorcycle numberplates have to be a certain size to be legal (9" x 7"), but this is incorrect. In fact, the minimum size (not even sure there is a maximum!) is based on the particular registration mark of the vehicle. Accordingly, if your bike's registration mark is "R123 ABC", there is a certain size that can be calculated under the regulations and that size would be required. However, if your bike's registration mark was "VFR" (you'd have to have been verywealthy to get this--registration marks are auctioned and bought and sold privately), a MUCH smaller plate would be perfectly legal. That said, I fit a much smaller plate when abroad on the bike--who you gonna tell? :P Ciao,

Nothing to worry about--you will! :lol: Ciao,

Really? I'm in serious trouble, then... Massive, crazy project, gotta love it. Gimme a holler if you can't find a bolt or something like that. (Not to mention a dimension off a fork or swingarm...) I bought several loads of "all the bolts, etc." from various parted-out Hondas last year. It's a good way to never run out of fairing bolts! Ciao,

(Excellent work, HS.) One way to think about length of, and strength of, a coil spring is to remember that a coil spring is really just a torsion bar that's been coiled up... If you grew up with VWs and air-cooled Porsches like I did, you may be familiar with torsion bars, which those cars used instead of coil springs (at the front, anyway). One end is held fast in the chassis, and the other is held fast in the suspension arm. When the suspension arm rotates, the steel torsion bar is twisted, which it resists, thus the car's weight is sprung. Thicker torsion bars twist less than thinner torsion bars, but they also weigh more. However, you can make the same diameter steel bar "stronger" by reducing its length. A shorter torsion bar weighs less than a longer one, and is stiffer to boot! (It would probably fatigue more quickly, too, but I'll let any resident metallurgists take care of that issue...) A motorcycle fork coil spring is like a very long, very thin torsion bar that's been coiled up. One end is held fast in the stationary part of the fork, and the other in the movable part of the fork. When you compress the fork, you are effectively twisting the spring similarly to the way you twist a torsion bar. So, given the way torsion bars work, a stronger coil spring could have larger diameter coils, but that would add weight and reduce the distance before the coils contacted one another. The alternative, as above, is to make the coil spring shorter and make up for the lost height with a spacer, which forces the weight of the bike to be sprung on a shorter "torsion bar". That's the way I tend to think of it, anyway! HTH. Ciao,

NOW you tell me? NOW, so do I! UK NC30 guru Rick Oliver modded my RC30 hub and machined me four 12mm drive pins to go with it. The NR wheel's mounted to it now, but that's as far as I've got, and it will be at least two months before this project progresses, as I'm off to Dubai for work... Out of curiousity, what other wheels use 12mm drive pins? Cheers,

Funny, that looks just like an RC30 hb/axle... David Silver Spares sold me one for UKP60 + VAT not too long ago. ($160 @ Ron Ayers). Ciao,