Volantex Lithium Battery Usb 4pin Plug 2s Charger 795-2;795-3 
MJX H8H Hyper Go RC Crawler Brushless 1:8th Scale Crawler Truck (Blue Orange) 
Volantex P-51D Mustang V2 Blue 
MJX H8h V2 All Rock Brushless 1:8th Scale Crawler Truck (2s & 3s Lipo Version) 
Key Specs
About this product
The CR3.4eco Crawler in Bronco style is of interest to all those who love purist crawling or want to get started in this fascinating hobby on a small budget.
This vehicle is a “downgrade” of our original chassis “CR3.4 RTR” which is among the best on the market and this since 2020 already!
The quality of the installed parts is of course the same as its fully equipped brothers. The mounting points for special equipment such as the differential locks or 2-speed gearbox would theoretically also be available.
The vehicle comes as standard with a 550 32T Brushed High Torque motor and a HobbyWing 40A speed controller. You can use jumpers on the speed control to determine whether the vehicle be powered by a 7.2V NiMH battery or a 2S or 3S (low profile) LiPo battery!
Portal axles not only offer a greater distance from the differential housing to the ground than conventional axles, they also have another positive feature. With conventional crawlers, the torque applies so much force that the vehicle jumps over the obstacle. The design of the portal axles reduces the Gear ratio at the wheels and virtually eliminates torque shocks from the drive. The overall reduction ratio of the axle drive is more than double that of non-portal versions to ensure smooth running.
The steering shock absorber absorbs most hard impacts so that the 9kg MG steering servo and the servo arm are spared. Hardened steel drive shafts and a steering angle of 45.8° offer the best possibilities for any terrain. Added to this are the 2.2″ tires, which not only look stylish, but also offer extremely good grip thanks to the super-soft tires.
Our 4-channel, 2.4 GHz CR4S-V2 radio control system completes the package.
2.4GHz 4-channel remote control CR4S-V2
9kg steering servo with metal gears
40A Hobbywing speed controller (3S LiPo capable) with T-connector
32T 550 brushed motor
Portal axles
Aluminium 4-link suspension
Steel drive shafts front and rear
Heavy duty cardan shafts front and rear
Steering angle max: 45.8°
Rims: 2.2″ with 12mm hexagon mount
Tyres: Supersoft 40x115mm
Shock absorber length: 90mm
Viscosity of damper oil: 500cps
Gearbox: Module 0.8/32dp; pinion18T / main gear44T
Approach angle: 60°
Departure angle: 45°
Length: 542mm
Width: 250mm
Height: 240mm
Ground clearance: 53mm
Wheelbase: 313mm
Weight: 2390g
CR3.4eco Crawler inklusive Fernsteuerung
Bedienungsanleitung
Stickerbogen
7.2V NiMH battery, 2S/7.4V LiPo battery or 3S/11.1V LiPo battery
Charger suitable for the battery type
4 AA Mignon batteries or TX LiPo battery for the remote control
You can find a selection of suitable parts on this page under “Spare parts and accessories”
Frequently Asked Questions
Yes, the CR4.4 WOLF is designed for beginners exploring crawling as well as experienced drivers. It comes ready-to-run with all components pre-installed, so no assembly is required, and the brushed motor and portal axle design make it forgiving for newer drivers learning obstacle climbing techniques.
The CR4.4 WOLF is compatible with 7.2V NiMH batteries or 2S/3S LiPo batteries (low profile). The included HobbyWing speed controller has jumpers that allow you to select which battery type you're using, making it flexible for different budgets and preferences.
The RTR package includes the assembled chassis with portal axles, a 550 32T brushed motor, 40A HobbyWing speed controller, 9kg metal-geared steering servo, 2.4 GHz CR4S-V2 four-channel radio control system, steel drive shafts, and 2.2" tyres. A battery and charger are not included.
The 1:10 scale means this model is one-tenth the size of a full-scale vehicle. With 2.2" tyres and a compact footprint, it's small enough for indoor or confined spaces whilst remaining large enough to handle real terrain and obstacles effectively.
Portal axles increase ground clearance and, more importantly, reduce the gear ratio at the wheels by more than double compared to conventional axles. This virtually eliminates torque shock that would normally cause the vehicle to jump over obstacles, resulting in much smoother and more controlled climbing.
