The OS-BASE is an "over the seat harness" for mounting OS-6

allowing a significant increase in grip behavior on cold and wet roads

LSL and shin yo sleeve clamping systems

Excellent quality at an attractive price

ELECTROSPORT Regulator ESR025 derbi-senda-50-l-50-2001-esi8786211 The OS-BASE is an "overThis Regulator Replaces the Internal Regulator Inside Nippon Denso Alternators. This Alternator is Commonly Used On Certain Suzuki GSX R Models, on Yamaha Fj Models, and Kawasaki Ninja Models Between 1984 Up to Now. Even thought he look's different compared to the stock regulator, it fits perfectly, has much better heatsinking capability and incorporates a thermal overload circuit. This circuit is important because it shuts down the regulator if the