Yokomo announces B-MAX4 III, new 4WD buggy to arrive late October

Sep 03, 2013 No Comments by

Yokomo has further refined its B-MAX4 buggy with this latest version, the B-MAX4 III. The new buggy is built on a minimalist aluminum chassis with substantial molded side plates. There is no upper deck, which should make the car very easy to work on anld lower the car’s CG, and the saddle pack configuration allows the shaft-drive system to run straight down the chassis’ center. A new slipper clutch spins the shafts, and the drive hexes are now “standard size” at 12mm. More details below. Expect to see the new car available at A-Main Hobbies (Yokomo’s US distributor) by late October/early November.

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The B-MAX4 III does not have an upper deck. Note the shrouded, center-mounted slipper clutch and saddle pack chassis configuration with thumbscrew hold-downs.

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The steering system is a typical dual-bellcrabk rig, with an unusual drag link configuration that reaches over the bellcrank-post brace. Note the holes in the tops of the ball cups–this allows the ball studs to be removed for spacer insertion without popping off the ball cups.

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The chassis appears roomy by 4WD standards, and it looks like the servo brace is an aluminum part.

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The bevel pinion is large, promoting greater tooth contact area and maximum efficiency. Note that the camber link studs thread into an aluminum part, not the plastic gearbox case.

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This underside view reveals that much of the car’s width comes from its plastic side plates. The plates angle upward to provide cornering clearance.

9-3-2013 10-56-39 AM

Looks good! This is one of the nicer cab-forward designs we’ve seen for an OEM buggy body.

 

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I've been involved in RC for over 25 years, and first joined Air Age Media in 1997. I served as Executive Editor until 2008, when I went to work on the manufacturing side of the RC biz. Now back at RC Car Action, I'm thrilled to be doing what I love most--not just enjoying RC, but sharing it with all of you. In addition to RC, I enjoy spending time with my beautiful wife Kathleen and our wonderful daughter Audrey.
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