After three revisions of the transmission case itself, two versions of the motor plate, two versions of the shock tower, several supplier problems, and Chazz being very sick for the last week, the 4-Gear transmission and C.F. rear shock tower are finally here. Paul is returning to Nashville on Dec 10 from the JConcepts clash in Tampa and will turn the shopping cart on later that day.

The New Math is a great car, but the 4-Gear makes it so much better. In the original car, when you hit the throttle the rotational mass of the armature throws the car’s weight forward onto the front wheels. The new 4-Gear turns the motor around so now the armature throws the car’s weight back onto the rear wheels, where it belongs, and you can rip on the throttle any time you want.

On a very high grip track, like the astro at Kampanhout, Belgium, there is almost no difference – the original X – 6 is dialed. The looser the racing surface is, the more important the 4-Gear is. With a 4-Gear there is no difference in acceleration out of corners between the X – 6 and a rear motor buggy. That used to be our Achilles Heel, and the 4-Gear solves the problem.

Drivers also report that the X – 6 is perhaps even more controllable in the air with the 4-Gear.

The original rear shock tower with its unique longitudinal bracing is incredibly strong. But there is a weak spot in the horizontal area where the tower fits under the transmission. Adding material there would require different spacing for the tranny mounting tabs, so the two projects had to be done at the same time. the new rear bulkhead has twice a much material under the transmission mounting tabs, and not a single one has failed in testing.

We decided to make the tower itself as a separate piece from carbon fiber so if the tower breaks it can be quickly and easily changed without removing the transmission. Most C.F. parts you see are made of 3-mm or thinner but our expensive 4-mm towers are ultra strong.

Two more changes: First, the upper shock mounting holes. No Team driver ever used the outer two holes on the original molded tower, and most of them drilled new holes inside. So, that’s the way the new C.F. towers are.

Second, you now have two wing mounting options, high and low. Just more the mounts up or down.

K015 4-Gear Upgrade Kit.

Contains everything needed to convert your X – 6 to the new 4-Gear Transmission.

Transmission Case; Motor Plate; Extra AE idler gear, shaft, bearings; Hardware; Template to drill two new holes in your existing chassis for the motor plate support bracket.

Click here to buy!

K016 X – 6 Upgrade Kit

Contains everything in the Kit above, PLUS the new rear bulkhead and C.F. tower.

Excellent value!

Click here to buy!

K017 Mew Math Total Upgrade Kit

Your Best Value! Contains everything in both Kits above PLUS a new chassis, pre-drilled for the 4-Gear. Also, new chassis has more material removed in the servo area.

If your chassis is 6 months old, this is the Kit for you – the chassis is about half price!

Click here to buy!