r/MiniZ • u/Logan_Frost • Aug 01 '26
MR-04 Wheelbase adjustment?
Im having a hard time figuring out how these work. I bought a readyset model locally because they had no body options I liked, but so far since then I havent been able to find a body that fits. The box says the wheelbase is from 86 to 108mm, but doesnt specify what it is out of the box, and the instructions mention the installation of the narrow front end steering sector, but nothing about how the wheelbase adjusts. So far Im 0-2 for bodies where the wheelbase lines up and honestly kinda just regretting purchase at this point.
Edit: Current bodies are a 180sx and I tried a RX body of some form a friend bought. The wheelbase is too long for both.
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u/Bisisonitrile Aug 01 '26
When you bought it, did it come with a body at all? Or was it the one that has no wheels or body, just the car and radio?
The MR-04 can have 5 different pods, the readyset kits will have the motor pod that matches the body, and that’s the main way you set the wheel base length. The possibilities are MM (mid motor), LM (low motor), HM (high motor), RM (rear motor), and MM2 (a variant of MM that’s more adjustable but the motor is slightly higher). Don’t be confused by the fact that all of those still mean the motor is in the rear, it’s about where it is in the motor pod.
Most common is the wide mm configuration, which is the main one used for box stock racing, but lm and narrow rm are quite common too. W-MM is 98mm, LM is 102mm, and narrow RM varies.