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The Bridgestone RS12 Rear Motorcycle Tire 200/55ZR17 78W is a radial rear tire built to hold grip through repeated hard cornering, not just on a single clean lap. Bridgestone redesigned the tread pattern for this tire, tuning the groove ratio to increase both rigidity and contact area when leaned over. The result is a tire that Bridgestone says gives riders consistent confidence across a range of riding conditions.
The size code 200/55ZR17 tells you three things: the section width is 200 mm, the sidewall height is 55 percent of that width, and the tire fits a 17-inch rim. That rim diameter must match your wheel exactly, and the full size code should match what is printed on the sidewall of the tire you are replacing. This tire carries a load index of 78 and a speed rating of W, which covers speeds up to 168 mph (270 km/h). Your machine's specification determines whether those ratings are the right match.
| Brand | Bridgestone |
| MPN | 03021906 |
| Model | RS12 |
| Position | Rear |
| Tire Size | 200/55ZR17 |
| Construction | Radial |
| Load Index | 78 |
| Speed Rating | W |
| Speed Rated To | 168 mph (270 km/h) |
| Overall Diameter | 24.0 in. |
| Section Width | 200 mm |
| Aspect Ratio | 55 |
| Rim Diameter | 17 in. |
| Weight | 14.6 lbs. |
| Country of Origin | Japan |
Not every product runs through our fitment finder, and we would rather you confirm exact fitment than rely on a partial filter. Match the specifications against your machine or the part you are replacing, or contact us and we will confirm it for you.
Ask a Parts Specialist →| Brand | Bridgestone |
|---|---|
| SKU: | 03021906 |
| MPN | 21252 |
| UPC: | 092971276591 |
| Condition: | New |
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