TRF101W Chassis Kit
Model Number: 42279





Independent front/solid axle rear

Chassis Description

TRF101W (Wide)

Body Type

Not Included


Not included

Original Price

MSRP $632

Tread Front


Tread Rear

Depends on tyres (see below)




front:Not Included
Rear:Not Included

The Tamiya Racing Factory has come up with a new variant of the TRF101.

The 'Wide-tread' Specification, designated as the TRF101W F1 chassis kit, is ideally suited high speed racing circuits.

The TRF101W benefits from the TRF team's wealth of racing experience and data.

It retains many of the original basic features of the TRF101 chassis while adding a number of upgrades to transform the front suspension into a wide-tread unit to make the chassis suitable for 'foam-tire' racing.

Other tweaks include a 2.5mm thickness main chassis to make the car more adaptable to low grip surfaces as well as a change to the damper position to make initial dampening more effective.

NEW Features:

Revamped front suspension arms: The redesigned carbon fiber upper arm piece is married with carbon fiber lower arms to bring the chassis excellent durability and enhance the unit's controllability. Both the front suspension mount and aluminium servo stay have also been redesigned for the TRF101W chassis.

Greater Flexibility: The thickness of the carbon fiber lower deck has been reduced to 2.5mm to provide greater chassis flexibility, which will provide enhanced stability on low-grip surfaces.

Battery posts have been moved forward, transferring pitch loads closer to the front of the unit and boosting front traction.

Smoother, faster dampening: The newly-designed middle brace moves the pitch damper attachment position 2.5mm to the rear, leading to faster response and keeping the car close to the track surface. The roll damper employs a new piston with equal contraction and extension lengths for smoother performance.

Newly Designed parts include:

Carbon Lower Deck

Carbon Upper Deck

Carbon Front/Rear Damper Stays

Aluminium Motor Mount

Aluminium F/R Lower Bulkheads

Aluminium F/R Upper Bulkheads

Steel Center Pulley Shaft

Aluminium Servo Mount

Front/Rear Drive Belts

Gear Differential Unit Front Direct Coupling


Aluminium Suspension Mounts


Construction type: Assembly kit

Terrain use: On-Road

Drive-train: 2WD

Drive type: Pinion to spur gear

Drive line: Solid axle

Differential type: Ball pressure plate

Suspension: Independent front/solid axle rear

Steering mechanism: Direct servo

Shock damper: Oil-filled damper

Shock damper material: Aluminium

Tire type: Not included

Tire tread: N/A

Body material: Not included

Chassis material: Carbon fiber plate

Electronic Speed Control (ESC) : Not included

LED Light buckets: No

LED lights: No

Motor: N/A

Bearings: Sealed ball bearing

Adjustable camber: Front only

Adjustable toe angles: Front only

Adjustable ground clearance: Yes

Adjustable gear ratio: Yes

Adjustable wheelbase: Fixed

Adjustable track width: Fixed

Adjustable shock angle: Yes

Newly-designed upper arm piece, front suspension mount, servo stay, middle brace and roll damper.

New: Lower arms are now made from carbon fiber material.

Compatible with square-shaped battery packs including shorty packs.

The pivot-ball link rear suspension has 3 different side link attachment positions for fine setting adjustments.

2.5mm thick Carbon Fiber Lower Deck

Aluminium Motor Mount

TRF Damper

Integrated Diff Plate and Rear Shaft

Track width with F103 foam tires: F: 198mm R: 198mm

Track width with F104 rubber tires: F: 198mm R: 180mm

Requires: 2-channel radio gear, 7.2v battery & charger, wheels, tires, body set, motor, esc