XRAY - Model racing cars

The 13.5 Novak brushless motor is getting really popular around here and all over in the US. This motor needs a crazy gearing around 4.8-5.0 FDR with Rubber Tires or around 40mm rollout (reference for the Foam guys). Using the Xray 84 tooth 48dp spur the biggest pinion which fits is 29. That gives a 4.92 FDR on rubber tires (and the desired 40mm rollout if you use 63mm dia tires) but leaves no options to go higher on a real big track. On foam however with the ideal 56-57mm the rollout ends up being around 36mm which is low for that motor.

An 80 tooth spur would solve the problems. Is there a plan to make one? Or is there anybody who makes one which fit?

Orion and LRP is comming out with their own 13.5 turn brushless and I bet we will have the same problem with those. The "slow" brushless motor is very appealing to the masses who can't control a 3.5 turn so I think it's popularity will grow even more in the future...

I use the new(er) RW Racing spur gears which fit the layshaft adaptor and let you access the motor mount screws.

I use Robitronic (Delrin) spurs. Perfect fit, little smaller, and easy acces for the mtor mount screws. I use a 75T spur for driving with a 5cell t2'007 and a Team Orion Element 19T V2 motor (pinion 34t)

Unfortunately Robitronic is not available in the US... I did buy some RW spurs before for my 05 but never used them because of the thick web which would require 8mm long screws to secure them. I bet they did change that design since then...

I would still prefer original Xray stuff.
It seems it is not just the 13.5 brushless but the 5 cell 19T needs those extreme ratios as well... One more reason to make 'em...

www.PrecisionRacingSystems.com You can get them at www.NexusRacing.net too.

Great gears with the holes for accessing the motor mount screws.

Thanks, I've found RW spurs on http://www.ampdraw.com/ , they will arrive today so I will post how they work out. On the weekend I've got a 96tooth Kimbrough 64dp gear from a fellow racer and purchased a 64dp 36 tooth pinion for it just for the race... Unfortunately the kimbrough spur is old style it has no holes to access the motor mounting screws on the 007 - I had extremely hard time adjusting gear mesh - I don't recommend those for the 007.
I hope the RWs will work out... if not I will go with the PR (Nexus does not carry the 48dp but PR has an online shop...)

Robitronic has a US site but they don't have an online shop (I'm just too lazy to call them and make a special order).

Doh