A combination of a strong Serpent spring steel axle with an aluminium pulley flange. Both the steel axle and the aluminium part have been lightened as much as possible.
The same pulley as used on the front differential is also used for this spool. ( item #804147 )
Replaced by :
Serpent optionals for all range of Serpent onroad cars (05/05/2011)
Serpent offers a wide range of optionals parts for the onroad cars.
Its easy to find the full list, by selecting the car of your choice, and then select optionals from the car-menu.