ALKTB068R – B Series 55A Race alternator kit with an 100mmPulley.& nbsp; All the parts you need to upgrade from a dynamo to an alternator or just upgrade your existing alternator. This kit contains everything needed to convert from an original dynamo to an alternator or to upgrade your existing alternator:55 amp “Race Spec” alternator with a 100mm pulley& nbsp; B Series engine alternator fixing bracket and adjuster bar Bracket hardware Plug adaptor leadM6 yellow ring terminal x 2 Fan belt X 2 (10 x 913 & 10 x 940).& nbsp; Two fan belts are included to cover different crank pulley sizes <span id=”sceditor-end-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span><span id=”sceditor-start-marker” class=”sceditor-selection sceditor-ignore” style=”line-height: 0; display: none;”> </span>55 amps& nbsp; & nbsp; & nbsp; & nbsp; 4.2 kg<br>