+1 on Schuur Speed

You won't be sorry. Better than any other stock motor I've tried (Tekin, Reedy, Trinity, Novak).

Trinity have always made the best stock motors! I wouldn't waste my money on anything but a killshot in the current 17.5 market.

Wasnt the D3 banned by ROAR? I would go with either the LRP X20 or Reedy Mach 2, I asked before I perchased a motor, and they were by far the favorites. I ordered the LRP Flow Compeetition ESC and X20 17.5t Combo, just waiting for them to get here.

Nice White Ballcups!

That's Yokomo links! Did you have to change the ball studs and rods too?

I run these yokomo cups on all my associated cars and they are great! No need to change anything else, just put the cups on.

Is this the correct part#YOKBM-206, I just finished building my b4.2 and about to start the t4.2 and was looking to use these instead of the rpm ball cups, I like the fact u dont have to take the ball cup off for setup changes and they look alot better than the rpm cups.

Is a Xerun 60A SD v2.1 enough for a 7.5T motor like the Reedy Sonic? Someone at our track said it's not, but i just can not imagine a 60A ESC to burn in a 1.5kg Buggy. My SC weighs more than 3.2kg, with 1400W motor and the 120A ESC doesn't even get hot!

Probably would be fine, but when you can get a 120 AMP esc for $55 from Brushless Hobbies ($67 with PC link) or a $35 from hobbyking.com (Hobbywing 120amp rebadge) why wouldn't you? I have been running 3 Brushless Hobbies 120 amps for over six months with zero issues ... no affiliation or sponsorship.

60a for a 7.5 is just to low. I would be looking somewhere in the 160a range.

+1 on the Schurr Speed. The D3.5 was removed from the list and for good reason -- it's clearly out of spec -- our track does not require ROAR approval and it's clear who has that motor (or some other outlaw motor/modification) in 17.5. It was night and day when I put one on my short bus ...

That being said the Schurr Speed is very smooth, light, cool and fast -- as good as any ROAR approved motor out there IMO. Perfect for light 2wd buggies.

Did you even follow the investigation?

Not many esc`s that can take 160a cont.. Orion and the new Speed Passion maybe?
My two sons use the Hobbywing Ezrun 80WP (80a) with the Trackstar 7.5 in the DEX410, a buggy known for being hard to esc`s and motors, and they are doing fine.

for a 7.5 in the b4, I would tun at least the 90 amp HW esc.

Hey guys I'm running a 9.5 3.0 Speedpassion motor geared 81/23 (IIRC) with an LRP spin esc (not the pro). My esc was shutting down after 6 minutes of the 10 minute main due to heat. Is my gearing off? Its a medium sized clay outdoor track. The motor was just barely warm.

BTW I upgraded to the AVID clutch. Huge improvement.