Description
Overview
The Tamiya XM-01 Pro Chassis Kit brings professional-specification rally driving capability to M-Chassis scale RC vehicles for the first time. This purpose-built 1/10 scale shaft-driven 4WD chassis assembly kit is engineered specifically for rally competition on mixed surfaces, featuring a compact front midship motor layout, three wheelbase options, aluminum oil dampers, and a protective polycarbonate chassis cover. Simply pair it with your favorite Tamiya M-Chassis size rally body and you're ready to take on dirt, gravel, and tarmac with confidence.
The XM-01 Pro represents Tamiya's commitment to expanding competitive rally options in the popular M-Chassis format. The chassis features sophisticated engineering including adjustable front/rear drive balance through different differential gear combinations, universal drive shafts for optimum efficiency, full ball bearings throughout, and compatibility with select XV-02 Pro hop-up parts. With its longitudinal upright battery position, skid-angle front bumper, and new suspension components, the XM-01 Pro delivers the perfect balance of compact agility and all-surface capability.
Key Features
- 1/10 scale M-Chassis rally chassis assembly kit with 308mm length, 165mm width
- Shaft-driven 4WD with front midship motor position
- Three wheelbase options: 210mm, 225mm, and 239mm
- Adjustable front/rear drive balance via differential gear selection
- Two 39T and one 40T differential gears included
- Aluminum cylinder oil dampers with blue anodized caps
- Front and rear universal drive shafts for optimal efficiency
- Full ball bearing drivetrain
- Front and rear oil-filled gear differentials
- Longitudinal upright battery position for optimum balance
- Polycarbonate chassis cover with wheel well covers
- Front bumper with skid angle to reduce surface contact
- 11-spoke M-Chassis racing wheels with 60D rally block tires
Chassis Features
- FRP (Fiberglass Reinforced Plastic) bathtub frame
- Front midship motor transmits power via center spur gear
- Front and rear propeller shafts (S and M/L included)
- 5-degree caster suspension mounts
- Turnbuckle upper suspension arms for adjustment
- New hub carriers and uprights with two ground clearance options
- 3-piece steering tie-rod with adjustable turnbuckle shaft
- Hi-torque servo saver for durability
- Compatible with center diff and separately sold slipper clutch
Drive Balance Tuning
- Use 39T gear (w/15T) front + 40T gear (w/15T) rear = front bias
- Use 40T gear (w/15T) front + 39T gear (w/15T) rear = rear bias
- Use matching gears front and rear = neutral balance
- Oil-filled differentials allow viscosity tuning
Performance Benefits
- Compact M-Chassis dimensions enhance agility
- Front midship motor optimizes weight distribution
- Aluminum oil dampers provide precise damping control
- Universal drive shafts maximize power transmission
- Full ball bearings reduce friction throughout drivetrain
- 5-degree caster improves straight-line stability
- Skid-angle bumper reduces speed loss on rough surfaces
- Three wheelbases accommodate various body styles
Usage Notes
The XM-01 Pro is designed for rally driving on dirt, gravel, and mixed surfaces, as well as tarmac. A low-profile servo is recommended (standard size servo can be used but contacts the front polycarbonate cover). The chassis is compatible with select XV-02 Pro hop-up option parts for further tuning. Choose your wheelbase based on your preferred body shell—the kit includes propeller shafts for all three configurations. Rally block tires are included and optimized for loose surface traction. Note: This is a chassis-only kit—body, motor, ESC, and radio system are sold separately.
Technical Specs
| Specification | Detail |
|---|---|
| Scale | 1/10 (M-Chassis) |
| Length | 308mm (with 225mm wheelbase) |
| Width | 165mm |
| Wheelbase Options | 210mm, 225mm, 239mm |
| Drive | Shaft-driven 4WD |
| Motor Position | Front midship |
| Chassis Material | FRP (Fiberglass Reinforced Plastic) |
| Differentials | Oil-filled gear type (front and rear) |
| Suspension | 4-wheel independent double wishbone |
| Dampers | Aluminum cylinder oil-filled (blue caps) |
| Caster Angle | 5 degrees |
| Gear Ratio | 8.27:1 (with 22T pinion); 13 ratios from 6.28:1 to 10.71:1 available |
| Bearings | Full ball bearings |
| Drive Shafts | Universal (front and rear) |
| Manufacturer | Tamiya |
| Item Number | 58738 |
What's Included
- Complete unassembled XM-01 Pro chassis kit
- FRP bathtub frame
- Aluminum cylinder oil dampers (4) with blue caps
- Oil-filled gear differentials (2x 39T, 1x 40T)
- Universal drive shafts (front and rear)
- Propeller shafts for S and M/L wheelbases
- 5-degree caster suspension mounts
- Turnbuckle upper arms
- New hub carriers and uprights (2 ground clearance options)
- Polycarbonate chassis cover with wheel well covers
- Hi-torque servo saver
- M-Chassis 11-spoke racing wheels (Item 51394) (4)
- 60D rally block tires (Item 51427) (4)
- Full ball bearing set
- Comprehensive instruction manual
Needed to Complete
- M-Chassis size polycarbonate body
- 540-size motor
- Electronic speed controller (ESC)
- 2-channel radio system (transmitter and receiver)
- Low-profile steering servo (recommended)
- 7.2V-7.4V battery pack (NiMH or 2S LiPo)
- Compatible battery charger
- AA batteries for transmitter
- Tamiya PS polycarbonate spray paints (for body)
- Basic assembly tools
Summary
The Tamiya XM-01 Pro Chassis Kit delivers professional-level rally capability in the popular M-Chassis format. With its shaft-driven 4WD system, three wheelbase options, aluminum oil dampers, adjustable drive balance, and full ball bearings, this chassis provides a serious competition platform for mixed-surface driving. The compact dimensions, sophisticated engineering, and XV-02 Pro parts compatibility make it the ultimate choice for M-Chassis rally enthusiasts seeking Pro-level performance and tuning potential.