High-Efficiency Planetary Gearbox
Reverse-Rotation Transfer Case
Aluminum Suspension System
AMS / CMS Dual-Mode Steering System

CTS CHASSIS

Designed for a pure driving experience, the CTS chassis combines realistic layout,

trail capability, and flexible configuration in one platform.

CTS chassis specification

● Chassis Length : 335mm
● Overall Width : 200mm
● Adjustable Wheelbase 242/252 mm
● Metal Planetary Gear Carrier
● STT90 Tires: 90 × 30 mm, for 1.9″ wheels
● Aluminum Shocks Set
● Two Set of Shock Springs
● Pre-Assembled Front & Rear Axle Set
● Pre-Assembled Reduction Gearbox
● Pre-Assembled Transfer Case

tws-cts-top-view-short-wheel-base-swb-trail-truck-242mm-252mm

The TWS CTS chassis is designed for real trail driving, with a front-mounted motor layout inspired by full-scale 4WD vehicles.

Power is delivered through a planetary reduction gearbox and transfer case to the front and rear solid axles. Steel bevel gears provide durability and reliable power delivery.

The convertible steering system supports AMS (Axle-Mounted Servo) as the standard configuration, or CMS (Chassis-Mounted Servo) for a more scale-oriented setup.

Two spring rates are included, allowing the suspension to be tuned for different vehicle weights.

The adjustable battery tray accommodates different battery sizes and positions.

Final drive ratios from 40:1 to 62.5:1 can be configured to suit different motor speeds and driving styles, with 50:1 as the standard setup.

CTS Transmission System

Designed to work with higher-speed motors while maintaining smooth, precise throttle control.

tws-cts-transmission-vtr-vtg-swb-trail-truck-242mm-252mm

Floating Motor Mount

O-ring mounting helps isolate drivetrain vibration from the chassis.

tws-cts-floating-motor-mount-vtr-vtg-thr-242mm-252mm-267mm-swb-reducer-box
tws-cts-planetary-gear-metal-vtr-vtg-thr-kit-rtr

High-Efficiency Planetary Gearbox

A compact planetary gearbox designed for smooth, quiet operation with high-precision molded gears.

● Metal planetary gear carrier included

● Pre-assembled reduction gearbox

Reverse-Rotation Transfer Case

The reverse-rotation design helps reduce drivetrain-induced torque twist for more stable vehicle movement.

● Pre-assembled transfer case

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tws-a162-bevel-gear-vtr-vtg80-thr-kit-rtr

High-Precision Powder-Metal Bevel Gears

Surface-hardening heat treatment improves wear resistance and fatigue life.

● Pre-assembled front and rear axle set

A162 Front and Rear Axle Set

The axle gear configuration can be reversed to change the drive direction, providing greater flexibility for custom builds and drivetrain layouts.

tws-A162-Axle-front-rear-vtr-vtg80-thr-kit-rtr

CONFIGURABLE AXLE ROTATION

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Full Ball Bearings

Ball bearings throughout the drivetrain help reduce friction for smooth, efficient operation.

Steel Shaft Coupler

The steel shaft coupler provides increased strength and durability under drivetrain load. Its adjustable length allows the drivetrain to accommodate different wheelbases without additional parts.

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tws-stt90-tire-cts-vtr-vtg80-kit-rtr-scale-truck

STT90 Scale Trail Tire

The STT90 combines a realistic tread pattern with a soft rubber compound and medium-support foam inserts, balancing scale appearance with trail performance.
Diameter: 90 mm
Width: 30 mm
Fits 1.9″ wheels

Aluminum Shocks with Low-Friction Piston Rods

Aluminum shock bodies provide durability and consistent performance, while the low-friction coated piston rods help the suspension move smoothly and respond freely over uneven terrain.

tws-cts-shock-onboard-vtr-vtg80-kit-rtr-alum

Positive Caster Angle

Positive caster angle improves straight-line stability and steering self-centering.

Kingpin Inclination

The steering axis is positioned close to the tire contact center to reduce scrub radius, helping reduce steering load and unwanted chassis movement.

AMS / CMS Steering Configurations

The CTS chassis supports both Axle-Mounted Servo (AMS) and Chassis-Mounted Servo (CMS) configurations.

tws-cts-ams-cms-steering-vtr-vtg80-kit

TECHNICAL DIMENSIONS

 

Chassis Length :

Overall Width :

Wheelbase :

Ground Clearance :

Final Drive Ratio :

Pinion Gear Module :

 

335mm

200mm

242 / 252 mm (adjustable)

50mm

40:1–62.5:1 (50:1 default)

0.6

CTS CHASSIS

Born from the vision of a pure driving experience, the vehicle was designed
to be the most capable vehicle on and off the road. 

CTS chassis specification

● Chassis length 335mm
● Overall width 200mm
● Wheelbase 242/252 mm adjustable
● Metal planetary gear carrier
● STT90 tire 90x30x1.9″
● Aluminum shocks set
● Two set of shock spring
● Pre-built F&R Axle set
● Pre-built Reducer box set
● Pre-built Transfer box set

The all-new tws CTS chassis was designed for off-road terrains.  The front motor placement is the same configuration as the full-scale vehicles. The torque is increased through the planetary gear reduction box, and then output to the front and rear axles by the transfer box. The strong bevel gears in the axles give the promising durability and instant power output. Convertible steering system: AMS (default, an advanced configuration for further modification) and CMS (more scale look) Two types of springs are included, which can be matched according to the weight of the car body. Adjustable battery box can be adjusted according to battery dimensions. The final transmission ratio ranging from 40 to 62.5 (default 50) corresponding to higher speed motors achieves an excellent throttle controllability.

CTS Transmission system

Corresponding to higher speed motors achieves an excellent throttle controllability.

Floating motor mount

Obviate the unnecessary vibrations which has potential to disturb the normal function of reducer system.

High-efficiency planetary gearbox

A compact and noise suppression design with high precision plastics maximizes the gearbox power density and operational smoothness.

● Metal planetary gear carrier included

● Pre-built Reduce box set

The reverse rotation transfer case

It can improve the body tilt generated when the vehicle is traveling.

● Pre-built Transfer box set

High precision powder metallurgy bevel gear

Surface hardening heat treatment strengthens the durability and fatigue life.

● Pre-built F&R Axle set

A162 front and rear axle sets

According to the needs of players, the transmission direction can be changed to increase the variability and flexibility of self-modification.

ADJUSTABLE TRANSMISSION DIRECTION

Full ball bearing

Results in efficient transmission and smooth operation.

Steel shaft coupler

The steel shaft coupler can withstand a relatively strong torque, and its durability is greatly increased. The long and short axle bodies can be adjusted and matched according to the future wheelbase without the need to purchase additional accessories.

Realistic tire tread STT90

The tread pattern has many real details, and the soft material is matched with a moderately supporting foam Inserts, which has both performance and realism.
Height : 90mm
Width : 30mm
For 1.9″ Rims

Aluminum alloy shock absorber and piston rod with low friction coating

The high thermal conduction and stress/density ratio of Aluminum result in high cooling efficiency for nominal operation. The low friction coating of the piston rod makes a smooth and seamless response of the absorber.

The caster angle of the steering system

Positive caster angle aims to keep a straight motion of the vehicle.

Steering large kingpin inclination

It can reduce the load of the steering gear and reduce the abnormal movements of the body caused by the steering and maintain the body posture.

AMS / CMS OPTIONAL

Designed to be the most capable vehicle on and off the road. 

TECHNICAL DIMENSIONS

Chassis Length :

Overall Width :

Wheelbase :

Ground clearance :

Gear ratio :

Pinion gear module :

335mm

200mm

242 / 252 mm (adjustable)

50mm

40~62.5 (default 50)

M0.6 (20T included)

V1 / V2 COMPARISON

CTS V1 60200100

CNC Machined

Bevel gear set

Plastic 

planetary gear carrier

Unassembled 

F&R Axle set

Unassembled

Reducer box set

Unassembled

Transfer box set

CTS V2 60200101

Powder metallurgy

bevel gear set

Powder metallurgy

planetary gear carrier set

Pre-built

F&R Axle set

Pre-built

Reducer box set

Pre-built

Transfer box set

CTS CHASSIS KIT OPTION PARTS GUIDE

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