One of the latest products now available from the Polini factory is this new swing arm for Piaggio Zip 50cc 2T models. This new support uses two bearings instead of the original silent block design. Not only does this make the frame stiffer and improve resistance under torsion situations it also changes the geometry and length of the scooter. With the length increased by 15mm entry speed can be improved into corners as the turn in is more precise and therefore the rider is able to go in faster. You can also get back on the throttle earlier as there is less chance of the front lifting; Polini’s technicians have seen much lower lap times when using the new swinging arm.
In stock soon for Piaggio Zip models – AD/150.2121
Showing posts with label swing arm. Show all posts
Showing posts with label swing arm. Show all posts
Wednesday, 25 April 2012
Thursday, 6 May 2010
Polini TORSEN WD Swing Arm
It certainly looks the biz, it's the 'Torsen WD' and it's a brand new swing arm from Polini designed for use with 50cc Piaggio and Minarelli engines.
With Moto GP styling, the Torsen WD swing arm is designed to stiffen the engine case therefore avoiding flexing which could lead to cracking. The addition of a bearing to support the axle further reduces flexing and stress and according to Polini, improves transmission efficiency. The system also improves stability when riding and cornering as well as reducing asymmetric tyre wear.
The Torsen WD is suitable for both track use and road use and can be fitted exclusively together with the new Big Evolution exhausts or the Polini For Race 2 and Scooter Team homologated exhausts.
Fitment: Piaggio engines (both short and long engine cases). Minarelli engines, CW series with vertical cylinder, MY series (air cooled) and MA series (liquid cooled) with horizontal cylinder and long case.
With Moto GP styling, the Torsen WD swing arm is designed to stiffen the engine case therefore avoiding flexing which could lead to cracking. The addition of a bearing to support the axle further reduces flexing and stress and according to Polini, improves transmission efficiency. The system also improves stability when riding and cornering as well as reducing asymmetric tyre wear.
The Torsen WD is suitable for both track use and road use and can be fitted exclusively together with the new Big Evolution exhausts or the Polini For Race 2 and Scooter Team homologated exhausts.
Fitment: Piaggio engines (both short and long engine cases). Minarelli engines, CW series with vertical cylinder, MY series (air cooled) and MA series (liquid cooled) with horizontal cylinder and long case.
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