Beta REV 3 - 125 Tire Size
GarageDex's powersports data shows the Beta REV 3 - 125 runs a 2.75-21 front tire and a 4-18 rear tire. Tire sizes vary by year - see the table for each range.
Tire fitment by year
| Years | Front tire | Rear tire |
|---|---|---|
| 2008 | 2.75-21 | 4-18 |
| 2007 | 2.75-21 | 4.00-18 |
124cc. Tire sizes read as width / aspect ratio - rim diameter. Match all three numbers to the rim.
Tires for your Beta REV 3 - 125
This bike runs a 2.75-21 up front and a 4-18 at the rear. Match the size stamped on the sidewall (or shown in the table) - powersports tires are size-specific, so the numbers matter more than the brand.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What tire size does a Beta REV 3 - 125 use?
GarageDex's powersports data shows the Beta REV 3 - 125 runs a 2.75-21 front tire and a 4-18 rear tire. Tire sizes vary by year - see the table for each range.
What do the tire numbers mean?
A size like 2.75-21 reads as tread width (mm) / aspect ratio (% of width) - rim diameter (in). Match all three so the tire fits the rim and clears the swingarm and fender.
Do the Beta REV 3 - 125 tire sizes change by year?
Yes - fitment differs across the years we cover: 2008 runs 2.75-21 front / 4-18 rear; 2007 runs 2.75-21 front / 4.00-18 rear. Match your exact year in the table.
Can I fit a different tire size?
Stick to the stock size - it's matched to the rim width, speedometer, and handling. A wider tire can rub the swingarm or fender and throws off the speedo, so only deviate on a shop's advice.