thank you sir

They are quite snug, but they do fit. Dimensionaly exactly the same as the 22 bottoms.

also. The traxxas lowers do not fit correctly without modding them.

I use the Losi TLR5095 lower cups

Hideeho
Upon further reading I found 1766 is listed for the b/t4 & b/t4.1 but the 9852 is listed for only b/t4.1. I'm guessing the 9852 uses the metric bearing & the 1766 uses the standard. Is this correct?

Thanks for the advice. The chassis is a foregone conclusion, I like your other suggestions. I was surprised at the motor and ESC myself and will be keeping those. I did make an order for an upgrade on the servo.

I call bs. Mine went right on.

lol....

lol, 4 weeks ago you posted "if it aint broke done fix it". Now your converted to big bores spring, lol. I found your post when looking up the part numbers.

I am thinking of doing the BB spring conversion. I would prefer losi springs, because i can get them easier at the lhs. Are the Avids that much better than the losi?

No. Save a ton of money and start with the Losi.

I checked there spring rates. I currently use brown front and silver rear. So I would think Losi Yellow rear and losi orange up front would be equivalent. That sound about right?

I believe your right I'm running losi yellow on rear Orange up front...they work great for my track ...I'm using them with kyosho velvets....

Interesting. I'm looking at expanding my spring collection for my velvets. The K springs are stupid expensive. Do the Losi's fit on there without all the hoopla with aftermarket collars and such?

Fit like a glove with K. Collars

Yes, they work perfect on velvets. Use traxxas upper retainers and the losi lower cups TLR5095 pick up Losi red and orange front springs and white and yellow rear springs. Keep the Associated lower eyes. This mod can be done for around 30 bucks. This setup gives you plenty of ride height adj. You need to come back to Muskegon / Hesperia to race!!