DESCRIPTION

All EVP.MOde Spec TAPP primaries are calibrated with +2mm rollers. Bigger rollers make the low end quicker RPM's, shift out quicker, and lower the full-shift RPM. This is due to arm angle and roller weight differences.

• +1mm Rollers - Outside Diameter 16.5 mm; weight 12.5 grams each.
• +2mm Rollers - Outside Diameter 17.5 mm; weight 15.3 grams each.
• +3mm Rollers - Outside Diameter 18.5 mm; weight of 18.5
• +3.5mm Rollers - Outside Diameter 19mm; weight of 19.7

IMPORTANT - Roller size must be installed in pairs opposite each other. Failure to do so can imbalance the clutch and may cause failure.

Manufactured by Evolution Powersports. Official specs and resources: EvoPowersports.com.

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