Topic: 350f fatter rear tire.

[crazypj]

i think what you might want to look at is actually a lower profile tire, that is if you're looking for something more aggressive... also, you can find a lot of used rims on egay, and as long as they're 40 spoke rims, they'll basically work with your rear hub, buchanan spokes can cut spokes for x rim to y hub for about $106, and they're very nice.  so, maybe it would be possible to find a 3.5x18 rim out there and fit maybe a 140/70 to it...

250, 350, 360, 400 use 36 hole hubs.
 (smaller bikes usually use 36 hole as well but there are a few 32 hole and they use WM0 or WM1 rims so are too narrow for what we are talking about)
500,550,750 use 40 hole

most used rims you find will be WM3 which is 2.15" inside flanges and will be OK for a 4.25" tyre (110/120mm)
 Wider ones are usually 16" for choppers or real expensive (flanged 3.00x18 or wider is well over $200.00)

PJ

[taymoor]

Thanks,
  That was some really helpful information!  I've been looking for an interchangable rim from some other old bike that will take a noticably fatter tire.  This information should help me pinpoint a good model.

[themotoworks]

funny that I never noticed that about my 400f... had it 3 years now haha... i looked at buchanans again and they offer rims as well, it could be worth perusing to see if they have a 36 dimple rim that's wider

[crazypj]

Buchannan's have a lot of rims that will fit but, they are very 'proud' of their prices ( expensive)
PJ

[themotoworks]

i'm actually getting myself off the idea of much wider tires... i was riding the 400f with the stock rear around very twisty roads lately, and pushed it as far as i could, and was keeping up with an 919 and (fzr?)yamaha... but never noticed much slip from the rear wheel, it protested a couple times but i don't think i could have cornered the bike harder with a fatter rear tire, not without dragging something... seems like the hondaneers knew what they were doing

[crazypj]

If your not flexing the frame and dragging chunks off bike , your not riding as hard as you think.
 It will go faster and further over (I've got the scars to prove it  )
 
PJ

[themotoworks]

lol, i'll pass one of them in a turn next time then... haha

[gane]

This may sound like a "rant", Believe me That is not my intent... while club racing in the MRA due to small  #'s in classes races were often combined IE; modern vintage O (open ) vintage U (under 550 cc)  AND 125 CC gp. Races were staggered starts w "O's starting  first, then,the U's and finally. gp's requiring a "Le Mans" start. after 8 laps on @ 1.8 to 2.1 mile tracks  it was usually a 125 who finished 1st... these bikes being down in most cases by more than 50% in horsepower needed an enormous difference in momentum/cornering speed. Indeed I recieved many dericive comments about my "driving down the straight" only to "Park it " in the corners. Believe me, I was "racing", but even when dragging bits and all out, My cornering speeds were slow by 125 standards which ran tiny tires. Tech. is hard to beat. if you plan on using all the potential of a period bike, use quality rubber, and in OE sizes. going oversized alters tire profiles, and swings more mass. while differences are small, I feel stockers offer superior handling. rant over, g

[crazypj]

gane, its hard to tell someone that fashion sucks, (but I think you gave pretty good example)
 I've seen the same thing with CCS
 125 riders are usually pretty tiny and totally crazy, but, what works, works (low center of gravity and low mass helps as well)
 If its being built to ride, do what works, if its being built to trailer around, do whatever you want


PJ