IRC MB99 120/90-10 Tire (Front or Rear )

The IRC MB99 is a true all-around tire that happens to feel really good on the street—and that balance is what makes it such a solid choice for a CT70.

The compound has a sticky, premium feel, with large tread blocks that deliver confident grip and predictable handling on pavement. Lean it into corners and it stays planted, giving the bike a stable, composed feel without feeling heavy or vague. At the same time, the deeper grooves and open spacing provide enough bite for gravel roads and hard-pack dirt, so you’re not stuck turning around when the pavement ends.

We’d call it a 70% street / 30% dirt tire. It’s happiest on asphalt, but it’s still perfectly at home on light off-road terrain.

In 120/90-10, the MB99 fits a stock CT70 rim or any of our 10" wheels and gives the bike a slightly fatter, more aggressive stance. The rounded profile helps the bike transition smoothly through turns while still maintaining enough edge grip for uneven surfaces.

Designed as a tubeless tire, it works great on modern rims but can also be run with an inner tube, making it compatible with stock wheels and vintage setups.

Overall, this is a great all-around, do-everything tire—grippy, versatile, proven, and affordable. If you want one tire that can handle daily street riding, weekend cruising, and the occasional dirt detour, the MB99 delivers.

Specs:

• Size: 120/90-10
• Construction: Bias-ply
• Type: Tubeless (tube compatible)
• Front or Rear
• Load / Speed Rating: 57J
• Riding Style: Street / Light Off-Road
• Sold each