When Tamiya introduced the CR-01 chassis, it brought a completely unique, engineering-heavy layout to the 1/10-scale rock crawling scene. Among the various rigs built on this platform, the Rock Socker stands out with its competition-inspired styling and distinct cantilevered setup. Whether you are discovering this kit for the first time or revisiting a favorite build, taking a closer look at its engineering reveals what makes it such a distinct entry in Tamiya’s off-road lineup. In this overview—Under the Hood of the Tamiya Rock Socker Rock Crawler—we take a look at the inner workings of the CR-01 chassis, explore the origin of its Stadium Blitzer-inspired body, and highlight three key Tamiya Hop-Up Option parts that are worth consideration.
TAMIYA CR-01 ROCK CRAWLING CHASSIS
The Tamiya CR-01 rock crawling chassis features a distinctive architectural design that sets it apart from standard 1/10-scale trail trucks. Most notable is its cantilever suspension layout, where plastic-body oil-filled CVA shocks mount upside down near the chassis centerline, actuated by a precision pushrod and rocker arm assembly. Stabilizer bars link the shock mounts across the frame to keep body roll controlled during technical climbs. In the traditional shock locations, Tamiya utilizes progressive coil springs directly over the axle links, allowing the truck to maintain a stable stance while articulating over obstacles. Massive articulation is provided by a heavy-duty four-link suspension system constructed with substantial aluminum rods, all anchored to a rigid aluminum ladder frame tied together with durable cross-members.
A plethora of metal parts used around the CR-01 chassis make for a durable and effective drive.
As you would expect with a rock crawler, the Tamiya CR-01 trucks utilize a robust shaft-driven 4WD drivetrain. In the front and rear solid axles are metal bevel gear differentials that can run either locked or unlocked.
Front and rear axle housings contain 3-bevel diffs which can be locked without opening up the housings.
Just remove the grub screw to lock the diff.
If you want the most traction possible, you run the diffs locked. Located at the center of the chassis is the included Mabuchi 540 brushed motor that spins a compact planetary gear transmission, which is small enough to enable a lower center of gravity for the CR-01. Out of the box, Tamiya equips the drivetrain with a combination of metal-shielded ball bearings and metal bushings to support rotating components. Receiving power from the drivetrain are four large-diameter tires with aggressive off-road tread that extends onto the sidewalls for extra bite when crawling on rocks. Each tire is wrapped around a functional plastic beadlock wheel featuring a realistic off-road design.
The compact gearbox transfers power to all four wheels and its small size enables a better center of gravity.
Durable ladder frames featuring aluminum side channels and resin cross members make for a sturdy off-road chassis.
Short progressive springs team up with the 4-link rigid suspension for amazing climbing ability.
TAMIYA ROCK SOCKER BODY
Unlike other Tamiya CR-01 models that replicate full-scale licensed 4×4 vehicles, the Rock Socker takes a different route, drawing inspiration from modern American off-road competition rigs. Longtime Tamiya fans will instantly recognize the body lines of the Rock Socker: it utilizes the iconic Stadium Blitzer 2WD truck mold, updated for the crawler platform with a fresh color scheme and a dedicated graphics sheet. Formed from lightweight, high-impact polycarbonate, the single-piece body shell includes pre-cut window masks to make paint prep fast and straightforward.
TAMIYA ROCK SOCKER SPECS
Item #58592
Scale: 1/10
Length: 17.13 in. (435mm)
Width: 10.43 in. (265mm)
Height: 8.47 in. (215mm)
Wheelbase: 11.34 in. (288mm)
Weight: 5.09 lb. (2,309g)
Chassis: Metal ladder frame with ABS plastic
Drivetrain: Shaft-driven 4WD
Differentials: Lockable F&R metal bevel gear diffs
Transmission: Planetary gearbox w/ 25T pinion
Gear Ratio: 32.4:1
Bearings: Shielded ball bearings and metal bushings
Suspension: Rigid 4-link w/ F&R stabilizers
Shocks: Push rod-actuated plastic CVA oil-filled dampers w/ coil springs
Motor: RS540 brushed
Speed control: Sold separately
Body: Clear polycarbonate
Wheels: Three-piece plastic beadlock
Tires: Realistic off-road treaded rubber tires w/ tread that extends to sidewall
Tire width/diameter: 57/125mm
Tread (F/R): 208mm
REQUIRED TO COMPLETE
2-channel radio system
Electronic speed control
Steering servo
Battery pack
Battery Charger
Paint for polycarbonate
TAMIYA CR-01 HOP-UP OPTION PARTS
Upgrading the CR-01 with factory Tamiya Hop-Up Option parts is the best way to increase chassis rigidity, control motor heat, and bulletproof the drivetrain against intense trail abuse. Below are three key upgrades that enhance both the functionality and aesthetics of the platform.
Tamiya CR-01 Aluminum Side Frame — Item #54087
Add serious chassis stiffness and clean scale style by swapping out the stock plastic side plates for these precision-machined aluminum units. Finished in black anodizing with silver silver-beveled edges, they deliver a high-end custom look while strengthening the entire frame structure. In addition to durability, these frames feature multiple mounting holes for the shocks and suspension links, giving you expanded geometry options to fine-tune your suspension setup.
Tamiya CR-01 Heat Sink Motor Plate — Item #54103
Designed for precise component alignment and efficient thermal management, this heavy-duty aluminum motor plate is a key structural upgrade. Its thick CNC-machined construction provides a rigid foundation that improves center shaft bearing seat precision and motor alignment. Integrated cooling fins machined directly into the plate draw heat away from the motor during long, slow-speed crawling sessions.
Rock crawling places massive rotational torque on center drivelines, which can twist or stress stock plastic shafts over time. Upgrading to these heavy-duty carbon steel propeller shafts ensures maximum power transfer without flex, wear, or distortion. Featuring a smooth telescoping design, they retain full suspension stroke as the front and rear axles articulate over harsh terrain. The shorter 85mm shaft handles rear drivetrain duties, while the 95mm version provides the proper length for the front axle setup.
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The Tamiya CR-01 rock crawling chassis features a distinctive architectural design that sets it apart from standard 1/10-scale trail trucks. Most notable is its cantilever suspension layout, where plastic-body oil-filled CVA shocks mount upside down near the chassis centerline, actuated by a precision pushrod and rocker arm assembly. Stabilizer bars link the shock mounts across the frame to keep body roll controlled during technical climbs. In the traditional shock locations, Tamiya utilizes progressive coil springs directly over the axle links, allowing the truck to maintain a stable stance while articulating over obstacles. Massive articulation is provided by a heavy-duty four-link suspension system constructed with substantial aluminum rods, all anchored to a rigid aluminum ladder frame tied together with durable cross-members.
If you want the most traction possible, you run the diffs locked. Located at the center of the chassis is the included Mabuchi 540 brushed motor that spins a compact planetary gear transmission, which is small enough to enable a lower center of gravity for the CR-01. Out of the box, Tamiya equips the drivetrain with a combination of metal-shielded ball bearings and metal bushings to support rotating components. Receiving power from the drivetrain are four large-diameter tires with aggressive off-road tread that extends onto the sidewalls for extra bite when crawling on rocks. Each tire is wrapped around a functional plastic beadlock wheel featuring a realistic off-road design.
Unlike other Tamiya CR-01 models that replicate full-scale licensed 4×4 vehicles, the Rock Socker takes a different route, drawing inspiration from modern American off-road competition rigs. Longtime Tamiya fans will instantly recognize the body lines of the Rock Socker: it utilizes the iconic Stadium Blitzer 2WD truck mold, updated for the crawler platform with a fresh color scheme and a dedicated graphics sheet. Formed from lightweight, high-impact polycarbonate, the single-piece body shell includes pre-cut window masks to make paint prep fast and straightforward.
Item #58592
