The TTR 125 has quite a low top speed of 45 to 55 mph, because nobody cares for top speed on a tiny cross bike. You could change the top speed by changing the transmission ratio of the chain drive, so you either use a toothed wheel with one or more teeth more, or you choose a smaller toothed wheel at the rear wheel.
Is a TTR 125 a good bike?
https://www.youtube.com/watch?v=CvQ0b69_oV8
How do I make my TTR 125 taller?
You make the bike taller and increase ground clearance by adjusting the front fork extension and the swing arm position at the rear suspension. The job requires basic mechanical skills, metric tools and the help of an assistant.
What does a big bore kit do for a dirt bike?
A big bore kit typically consists of a new larger bore cylinder, piston kit, and top end gaskets. They replace your stock Original Equipment Manufacturer (OEM) parts and increase horsepower and torque by increasing the engine size (displacement).
How much speed does a big bore kit add?
An ideal big bore kit for a middle of the road performance should generate about 10hp at a run of between 9-12,000rpm's. Well just like most modifications, a big bore kit can lead to more fuel consumption. The truth is that it increases the combustion chamber area of your scooter allowing more air/fuel mixture to burn.
How much horsepower does a big bore kit?
Installation of Speed's kit harley accessories takes a professional around a dozen hours to complete, and has transformed our stock 1450cc, 65 horsepower engine into a 1550cc powerhouse.
Is a 144 big bore kit worth it?
A well constructed 144 can do very well. I would say the athena is nice in the sense its complete and "bolt" on (though its not truly bolt on) its a decent value, but if you can have your cylinder worked over to a 144 then you can get more power than the athena kit.
Yamaha's stock TTR 125LV and 125L dirt bikes are preset at 30.5 inches high at the seat, providing approximately 10.4 inches of ground clearance. Riders with longer legs or a lower center of gravity might need more ground clearance for negotiating moguls and when riding in deep grooves.
What age is a TTR 125 for?
The Yamaha TT-R125 will suit riders from about age 10. That would be the TT-R125E with a 17-inch front wheel and 14-inch rear, and a drum front brake.