Hi Doug,

The MPI aluminums are not as light as the MK/Tettra due to the thicker foam compound and center rubber rib. A 2" MPI wheel weighs 12 grams without nylon insert, maybe 13 grams with. Not bad considering 1/4 cost of the MK/Tettra, and about same weight as the Dave Brown Lectra Lite foam wheels.

For lightness, I've found the best wheels to be MK ultra light. The blue foam is lightest but the black is very light too, at only 7 grams each for 55mm. And I've found when comparing weights you have to compare the entire system including the axles. The MKs are not only light in the wheels; when integrated with the MK anodized aluminum axle they are absolutely the lightest because the axel is very short and there are no collars, just a tiny nylon locknut. The downside is, you have to use MK axels with MK wheels, but the red/gold colors of the integrated axles are just a beauty - how can one resist?

For light and way cheaper options I've also used the Dubro Treaded Super Lite wheels and Dave Brown Treaded Lite Flite (Not to be confused with Lectra Lite Flite, which are for electrics and way way too soft). The Dave Brown Lite Flite is a soft high quality absorbant foam, it really takes away the bounce but is softer and heavier. The Dubro Super Lite is made of harder foam and will bear some weight. It is also the cheapest in cost vs lightweight and strength.

Here's a summary of the 2" wheels I just weighed: (weight is each wheel in grams)

- 2" MPI aluminum wheels: 12~13g
- 2" MK Black Super Light: 7g (55mm)
- 2" Dave Brown Treaded Lectra Lite wheels: 13g
- 2" Dubro Treaded Super Lite wheels: 6g

Hope that helps and happy landings!
Matt