DISCUSSION POINT – WHEELS & TIRES
Once this series has been approved and a series-manager confirmed; I think we should discuss wheel choices.
During unboxing the rear wheels appear “tiny” and in fact the OEM wheels NSR5021(13d x 10w) have a 10mm diameter rim with a max OD of 13mm at the ribs. [Upgrades NSR5022 (13d x 13w), NSR5026 (13d x 13w drilled)] This is smaller than NSR’s legacy F1-rims, NSR5005 with a 14mm OD at the rib (12mm width).
Several reviews of the NSR Formula 86-89 cars mention this size difference as having a potential risk of rear-pan contact with the track (in climbs/drops). Basically if the rear tires are trued under a certain diameter, the end of the chassis may drag against the track in sections that are not flat.
It appears that the axle for the Formula 86/89 cars is the standard NSR sub-3/32 size[1]; and it appears larger OD tires would not interfere with the body, therefore it does not appear to be a hard *technical* reason why the NSR5005 14mm OD rims could *not be used.
NOTE: We previously used these rims and compatible tires (5220) on the 2016 Formula series (the NSR wheels were the same dimensions as the AllSlots). So members who raced the Allslot race in 2016 may have some leftover spare wheels and tires.
……….
[1] NSR and Thunderslot Axles = 2.37mm (2.99/32in)
"... get on your bad motor scooter and ride!"
Sammy with Montrose