Product Information "Set: Gearshift optimization"
Set: Gearshift optimization
- the set includes: Bolt for shift drum screwed, Swivel lever optimized and Needle bearing for shift drum
Bolt for shift drum screwed
- easy installation of the shift drum
- easy adjustment of the axial play of the shift drum
- improves shifting behavior
- perfect for racing applications
- retaining ring 12x1 DIN 471 is not required
- securing the shift drum is done by screwing with a rosette disc
- pressed and screwed into the left engine half
- engine must be opened for installation
Swivel lever optimized
- Swivel lever optimized for shifting
- reduced play between shift drum and swivel lever
- better adjustability and shifting accuracy
- pin on the swivel lever is turned down and a bushing has been pressed on
- additional screw securing was used for safety
- pin has an exact outer dimension of 8.00mm due to the bushing, hardened and ground
Note:
Swivel lever is designed for 5-speed shift drums or replica 3 or 4-speed shift drums.
When using with 3 or 4-speed DDR shift drums, the groove must be checked before purchase.
Partially, the milled grooves are under 8mm and thus the swivel lever cannot be mounted. A replica shift drum can be used for this purpose, which has a groove width of approximately 8.1mm.
Needle bearing for shift drum
- reduces the radial play of the shift drum
- improves shifting, more direct and easier
- pressed into the shift drum
- ideal for 5-speed transmission
- suitable for bolted shift drum and shift drum bolt
- last image shows installation location on the shift drum bolt
- shift drum bolt not included in delivery
Note:
The needle bearing is adapted for 5-speed shift drums from MZA. When used in other shift drums, such as 4-speed DDR, adjustments may be necessary.
Check shift drum bolt!
DDR shift drum bolts vary in dimensions and can therefore have a diameter of over 15.0mm at the bearing point. The shift drum bolt must not exceed 15.0mm, if necessary use replica shift drum bolts or bolted shift drum bolts.