Brinn 1^st Design internal clutch 2 speed transmission - serial number 0123 – Fresh clutches installed as shown – new Hi/Low engagement dog slider hub – freshly sealed - magnesium cased – P/N 70010 – magnesium case/magnesium tail - dog gear shifting - well maintained trans from former modified team – was sitting in storage for a while until recently acquired and freshened - Very good condition, internally nice and race ready – small trim on the crankshaft pilot for perfect fit as shown – 0 laps since freshened as shown