0
of 1 Selected
In Stock
TRF421 Chassis Kit
Item No.
Tamiya -
TAM42384
$731.50
Need To Complete
This product may require additional items in order to work out of the box. See below for required items that may be needed to complete.
I do not need to purchase this item.
TAM42384
DX5 Pro 5-Channel DSMR Transmitter with SR2100 Receiver
SPM5025
In Stock
$399.99
I do not need to purchase this item.
TAM42384
Speedpack2 7.2V 1800mAh 6C NiMH, Flat Tamiya
DYNB2050
In Stock
$16.99
TAM42384
Speedpack2 7.2V 2400mAh 6C NiMH, Flat Tamiya
DYNB2060
In Stock
$20.99
TAM42384
Speedpack2 7.2V 5100mAh 6C NiMH, Flat Tamiya
DYNB2090
Not Available
$45.99
TAM42384
7.2V 2200mAh 6-Cell NiMH Battery: Tamiya
GEANM6S2200T
In Stock
$20.59
TAM42384
7.2V 3000mAh 6S NiMH Battery: Tamiya
GEANM6S3000T
In Stock
$26.79
TAM42384
7.2V 3000mAh 6-Cell Sub-C Stick NiMH Battery: Tamiya Connector
ONXP5311
In Stock
$22.99
0
of 1 Selected
I do not need to purchase this item.
TAM42384
1/10 SV3 Sidewinder Waterproof ESC/1406-6900Kv Brushless Motor Combo: 4mm Bullet
CSE010011507
In Stock
$139.95
TAM42384
1/10 SV3 Sidewinder Waterproof ESC/1406-7700Kv Brushless Motor Combo: 4mm Bullet
CSE010011508
In Stock
$139.95
TAM42384
1/10 Mamba X Waterproof ESC/1406-6900Kv Sensored Brushless Motor Combo: 4mm Bullet
CSE010015503
In Stock
$244.95
TAM42384
1/10 Mamba X Waterproof ESC/1406-7700Kv Sensored Brushless Motor Combo: 4mm Bullet
CSE010015504
In Stock
$244.95
TAM42384
SW4 12.6V 2A BEC WP SL ESC 1406-7700 Sens Motor
CSE010016404
In Stock
$149.95
TAM42384
1/10 Copperhead 1406-6900Kv Sensored Brushless ESC/Motor Combo
CSE10016603
In Stock
$153.71
Price reduced from
$204.95
to
TAM42384
1/10 Copperhead 1406-7700Kv Sensored Brushless ESC/Motor Combo
CSE10016604
In Stock
$153.71
Price reduced from
$204.95
to
0
of 1 Selected
I do not need to purchase this item.
TAM42384
HS-77BB Standard Analog Low Profile Servo
HRC31077S
In Stock
$29.99
TAM42384
DB778WP Ultra Torque Brushless Low Profile Waterproof Surface Servo
HRC36788S
In Stock
$139.99
TAM42384
A7090 Brushless Low Profile Metal Gear HV Servo
SPMSA7090
In Stock
$69.99
TAM42384
T120 Standard Low Profile Digital HV High Torque Metal Gear Servo
TEKTT1500
In Stock
$159.99
TAM42384
T180 Standard Low Profile Digital HV High Torque Metal Gear Servo
TEKTT1501
In Stock
$159.99
0
of 1 Selected
I do not need to purchase this item.
TAM42384
Reedy 324-S Compact Balance Charger
ASC27201
Next Shipment December 2024
$35.99
TAM42384
Reedy 1416-C2L Dual AC/DC Comp Balance Charger
ASC27203
In Stock
$187.99
TAM42384
Imars III PRO 10A Smart Balance RC Battery Charger
GEA100WMPRO
In Stock
$59.99
TAM42384
RDX1 Mini AC Charger
HRC44295
In Stock
$46.99
TAM42384
RDX2 Mini AC Balance Charger
HRC44299
In Stock
$84.99
TAM42384
RDX2 Pro High-Power, 260W, Dual Port AC/DC Charger
HRC44301
Not Available
$149.99
0
of 1 Selected
Estimated Total:
$731.50
Selected Store
Overview
After two and a half years of development, we now bring you the ALL-NEW TRF 421. The highest end touring car chassis series we produce has received a whole new suspension and layout makeover!
This 2-belt driven 4WD carbon fiber double-deck design is loaded with new features such as an updated drivetrain, a new lower deck shape, front and rear upper A arms, and new shorter dampers, all of which promise to translate into serious speed on the track! Other notable features include a choice between one- and two-piece upper deck layouts for different chassis flex characteristics, plus updated suspension geometry that keeps the chassis more stable.
The Drivetrain uses a front direct coupling and rear oil-filled gear diff. Equal length front and rear drive belts minimize pitch.Suspension Arms are a rigid "A" design with 7mm longer span compared to the TRF420X for stable roll, while upper arm mounts can be slid to adjust camber. Three damper pivot positions are provided. Dampers are 5.5mm shorter than on the TRF420X, for a lighter chassis and lower center of gravity. Attach them directly to aluminum mounts and fine-tune with spacers.
- Drivetrain Features 22.4mm Toward Center Motor Position
- Updated Setup Of Spur Gear And Drive Belts
- A-Shaped Suspension Arms
- Front And Rear Differential Pullies
- Lightweight Rear Wheel Axles
Features
- 1/10 scale R/C chassis assembly kit.
- The drivetrain features the motor position moved 22.7mm toward the chassis center compared to the TRF420X Chassis Kit and has identical length front and rear drive belts for stable drivability.
- With updated setup of spur gear and drive belts, only one dedicated nut is required to attach spur gear, which enhances efficiency of maintenance.
- The new lower deck is smaller compared to the one used on the TRF420X Chassis Kit to limit ground clearance when the chassis experiences roll.
- Choose from two types (one-piece and two-piece) of upper deck. Changing screw positions allows five setup patterns in total.
- A-shaped suspension arms are employed for higher rigidity. (The 420X chassis kit uses I-shaped suspension arms.) Longer lower arm spans limit swing width and ensure stability when the chassis experiences roll.
- Along with longer lower arm spans, front and rear suspension setups are changed from suspension blocks to suspension balls. Roughly 7mm-longer arm spans limit swing width and ensure stability when the chassis experiences roll.
- Toe angle can be adjusted by uprights. (The toe angle of lower arm inside is 0 degrees.)
- Three attachment damper positions (inner, middle, and outer) on front and rear lower arms are offered by two types of aluminum bushings.
- Changing positions of upper arm mounts by screws allows changes to front and rear caster angles, which is suitable for current high-downforce races. Front caster available angles: 3, 4, and 5 degrees. Rear caster available angles: -.5, -1.5, and -2.5 degrees.
- Dampers are shorter by 5.5mm compared to the 420X chassis kit, which provides an exceptionally low center of gravity and reduces the weight, for a more dynamic driving experience.
- Dedicated damper ends are used front and rear to ensure the same piston level.
- New damper oil seals (Item 51738) are used to keep the maximum oil amount and to make use of oil dampers efficiently.
- While the 420X chassis kit uses carbon fiber damper stays, this chassis kit employs aluminum mounts for precise angle adjustments based on the number of spacers used.
- Front and rear differential pullies are newly molded while direct coupling and oil-filled gear differential are employed at front and rear, respectively. (The currently sold Hop-Up Option and Spare Parts can be used.)
- The front features double cardan joint shafts while rear employs lightweight universal drive shafts. New axle shafts (Item 42388) and 45mm drive shafts (Item 42387) are also used for both front and rear to ensure efficient drivetrain and maintenance.
- Newly designed lightweight rear wheel axles enhance durability.
- Precision stabilizers are attached at a lower position than drive shafts for efficient maintenance of drivetrain. Includes 1.0mm diameter (x1), 1.1mm diameter (x2) and 1.2mm diameter (x1).
- The steering system pairs dual steering arms and Ackerman bush with a new steering bridge. Three types of new spacers featuring different diameters allow steering angle adjustment.
- Includes Sealed Ball Bearings from the TRF series for efficient rotation and Item 22078 Aluminum Differential Holders (0.8mm Offset, 2pcs.).
- The newly molded quick-plate design battery holder does not require tape for attachment. Depending on the battery pack equipped, change positions of spacers and posts. Shorty pack compatible.
- Comes with a carrying case dedicated to the TRF421 chassis kit.
Product Specs
Ball Bearings
Battery
Body
Charger
Chassis
Completion Level
Differential
Drive Type
Drivetrain
Gear Ratio
Manufacturer #
Motor Size
Power Type
Radio
Receiver
Scale
Servos
Shock Type
Speed Control
Suspension
Vehicle Size
Vehicle Type
Compatibility
No results for your given fitment filters
Get Info From Communities
Tamiya’s TRF R/C designers never rest. They are constantly looking to bring our most hardcore R/C racing fans the absolute best features able to be squeezed into a 1/10 scale touring car chassis!
Product Details
In The Box
- (1) 1/10 TRF421 4x4 Touring Car Chassis Kit
Needed to Complete
- (1) 2+ Channel Radio System
- (1) Low-Profile Steering Servo
- (1) 540-Size Motor
- (1) Electronic Speed Control
- (1) 7.2V - 7.4V Battery
- (1) Battery Charger
- (1) 190mm Wheelbase Touring Car Body
- (4) Touring Wheels and Tires
Club Points Information
Horizon Hobby RC Club:
The points displayed are points you will earn based on your membership level and the cost value of the product. Be sure you are Signed In to your account to see the most accurate points you will earn on your purchase. Points are awarded and available for use once your order has shipped complete.
|
Points per $1 Spent |
Standard |
Legend |
Elite |
|
5 |
15 |
20 |
2000 points = $5 Discount
Points displayed here do not include Bonus Points for select product. If the product is marked with the Bonus Points badge you will also earn the extra "Bonus Points" points listed in the banner in addition to the calculated points displayed
