Hoosier is proud to release a new R55 compound specially formulated to meet the grueling demands of 125cc shifter classes in sprint, circuit race, and solo applications.
Recent testing has shown the R55 comes up to temperature quicker, provides more lateral grip, has a crisper transition, and allows the driver to commit to throttle earlier when compared to our flagship R60A compound. The new R55 instills a greater sense of confidence with the driver as well. Below are the tire specifications:
| Item # | Size | Tread Pattern | Tread Width | Approx. Dia. | Approx. Circ. | Recom. Rim | Measured Rim | Section Width | Compound |
|---|---|---|---|---|---|---|---|---|---|
| 22149 | 4.5/10.0-5 | Slick | 4.25" | 10.0" | 32" | 5" | 5" | 5.5" | R55 |
| 22368 | 7.1/11.0-5 | Slick | 6.375 | 11.0" | 34" | 9-8.25" | 8.25" | 8.5" | R55 |
The new R55 tires will have a cold durometer of 54-56. They are expected to be in stock by April 2, 2018. Hoosier will still continue to offer the R60A and R60B in the same tire sizes. The description of each compound is as follows:
R55 (Soft/Medium) - Ultra high performance compound for 125cc shifter classes
R60A (Medium) - Ultra high performance compound for 2-cycle & 4-cycle direct drive classes
R60B (Medium/Hard) - Club spec tire that melds exceptional performance, consistency, and durability
The R55 compound can be used by other sprint classes in track conditions where more overall grip is desired. These classes include Tag Senior, Tag Junior, 100cc classes, and 80cc shifter.
If there are any questions, please feel free to contact Adam Batton.
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