Upgrade 10" To 12" Wheels Possible?  By  JerryScript (Read 8,604 times)

Most you can not go up a taller rim size but you can get premium tires and often a size wider or two

no, you cannot put 12" wheels and tires on a short case. In fact, you have to deflate some 12"( tires in order to clear the oil fill fitting on long case motors), just to get them on. There is not enough clearance between the spindle and case on a short case motor. They will only accept 10" wheels and tires.

Ok ok... I know there are already answers here... however, if the outside diameter of the tire stays the same and only the rim diameter is changed, still the same width the yes, you can use larger diameter rims. The tire at 10 x 3.50 in is wider than the 10 x 2.50 in rim so as long as you keep the same OUTSIDE DIAMETER tire and the same width rim it should work, however, you WILL need a lower sidewall tire, lower profile. the lower the profile, the rougher the ride so the only thing you may gain is looks. You have the outside diameter of the tire and the 3.50 inches wide to work with because it is already taking up that space. Make sense?

By the way, That is a beautiful scooter and it already has premium wheels. Why would you want to mess with that? I doubt you could get a set of aftermarket 12" rims as nice as that .

. I run 130/70 12's on a long case motor.Clearance to the case is not a problem but the oil fill spout sticks out further than the case to spindle clearance. you have to completely deflate the tire and squeeze the b'jesus out of it to get it into it's place.I realize this is a higher profile tire,but even a smaller one would not go on my shortcase. Another issue is most short case spindles have one less tooth on the spline than a long case so 10 vs 12" rims fit on different spindles. also, with a disc brake, it's longer. You had a taotao with 12's because it was made like that. When you go to make that change on another scooter, I guarantee you will have many issues. Center of spindle to case clearance on a short case is 9.5" 10.75 for the long case. You might, with drum brakes, and a short spindle( remember you need to change it out from a long case) and a lot of sweat and swearing, You might squeeze a 12 " in there but I seriously doubt it Figuring by diameter is one thing Getting the wheel and tire on the spindle is another.I bet the 2010 rear wheel will not fit on the new one.

The reason they make a long case QMB139 is so that they can run 12" or even 13" rims and tires.The short case proved too much trouble. What I did once was to just get a crashed scooter, Take the whole engine assembly and the entire front end with 12" tires ( need wider space between forks) and swapped it out to my frame that had 10's. It worked out very well. The only issue was that the hole that the steering locck was in a different place. I found out after the job was done. I wasnt about to take off the front end again, so I left it alone. BTW, the final gearing in a short case is different than a long case too too. Too many headaches involved. Best to put in a long case and be done with it.

I had a TaoTao with 10x3.5 tires and man it was so sketchy at top speed . I bought an Echarm with 16s which is like a crossover between a scooter and a motorcycle type of ride as to me a scooter should have doughnuts ( fat tires ) . It was very much more stable but to me the tires are not wide enough . I bought another scooter a Jonway Magnum with 13s and wow I love how it rides . It has a street knobby tread pattern so there is a slight knobby bounce that reminds me of the old school mini bikes . The 16s are 100mm F and 110mm R , where the 13s are both 130mm . It is amazing how much more stable the ride is while going over uneven road patches and cracks that made the other 2 scooters wobble . Even strong winds from the sides do not phase it . I feel so safe that I have ridden in turns and straights with no hands and not be nervous . The other two if I took off a hand like to adjust my face shield or give a one finger salute it would shimmy . The Echarm would do this so bad it was skeery ( yes its slang ) with the stock tires but only a 3rd with Shinko tires .

I have saw a few scooters that had 12s have the front replaced with a 10 . It looked funny to me but a buddy used his junk parts since he did not have the cash for a new 12 tire .

Here is a visual calculator to compare two diff tire sizes side by side www.tacomaworld.com/forum/tirecalc.php .

I was used to pedal mopeds with 17s , MX and streetbikes with tall tires , so my very first scooter I rode ( which was my scooter I bought later ) the shorter rims and wheelbase felt weird as it was so nimble compared to what I was used to .

The longcase scooters also have more leg room which is great if your tall like me at 6ft 4