How fast does a YZ125 4-stroke go?
The max speed for a 125cc 4-stroke dirt bike is it going to be around 50 miles per hour while the max speed for a 125cc 2-stroke dirt bike is going to be around 70 miles per hour.
When did they start making YZ125?
1974
The Yamaha YZ125 is a motocross racing motorcycle with a two-stroke 124.9 cc (7.62 cu in) displacement single-cylinder engine made by Yamaha since 1974. It is available to the public.
What age is a 125 2-stroke for?
| Class Name | AGE | *NOTES |
|---|---|---|
| Super Mini | 12-16 yrs | No “A” riders |
| Schoolboy | 12-16 yrs | No “A” riders 86cc – 125cc 2-stroke 75cc – 150cc 4-stroke |
| Schoolboy 2 | 14-16 yrs | No “A” riders, No minicycle or Supermini. |
| 125cc | 12* & up |
What is better 125 2 stroke or 250 4 stroke?
First, don’t misunderstand and think because the 250 is greater in size than 125 that the 250 4-stroke is more powerful than the 125 2-stroke. In fact, 2-stroke bikes with the same engine displacement typically have significantly more power than their 4-stroke counterpart.
Is the Yamaha YZ250F the same as the YZ125?
In 2001, Yamaha released a bike designed to complement the YZ125, the four-stroke YZ250F. The two bikes shared a rolling chassis and are eligible to compete in the same racing class. However, the YZ250F has a slight horsepower advantage. The YZ 125 has had a liquid-cooled 124 cc, reed valve-inducted, two-stroke engine since 1981.
When was the first Yamaha YZ 125 made?
Yamaha YZ125. It was first produced in 1974 and for the first year was made with dual rear shocks (Thermalflow shocks) and in 1975 released its first monoshock design the YZ125C and has continued production with a new model being produced every year to date. The YZ 125’s produced from 1996 to 2002 are considered by some to be…
What kind of shocks does a Yamaha YZ125 have?
For the first two years it was made with dual rear shocks, then changing to a monoshock. The YZ125 has been ridden to five AMA National Motocross Championships, and multiple AMA Regional Supercross Championships.
What was the gear ratio on a Yamaha YZ 125?
Gear ratio – 6th gear 23/21 (1.095) From 1973 through 2004, the YZ 125 had a single backbone frame made from steel. It generally averaged from 176 to 198 lb (80 to 90 kg). For the 2005 year, however, Yamaha switched to a single backbone frame constructed from an aluminum alloy. This frame material change dropped the weight to 190 lb. (dry weight).
Yamaha YZ125. It was first produced in 1974 and for the first year was made with dual rear shocks (Thermalflow shocks) and in 1975 released its first monoshock design the YZ125C and has continued production with a new model being produced every year to date. The YZ 125’s produced from 1996 to 2002 are considered by some to be…
In 2001, Yamaha released a bike designed to complement the YZ125, the four-stroke YZ250F. The two bikes shared a rolling chassis and are eligible to compete in the same racing class. However, the YZ250F has a slight horsepower advantage. The YZ 125 has had a liquid-cooled 124 cc, reed valve-inducted, two-stroke engine since 1981.
For the first two years it was made with dual rear shocks, then changing to a monoshock. The YZ125 has been ridden to five AMA National Motocross Championships, and multiple AMA Regional Supercross Championships.
Gear ratio – 6th gear 23/21 (1.095) From 1973 through 2004, the YZ 125 had a single backbone frame made from steel. It generally averaged from 176 to 198 lb (80 to 90 kg). For the 2005 year, however, Yamaha switched to a single backbone frame constructed from an aluminum alloy. This frame material change dropped the weight to 190 lb. (dry weight).