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TKR9300 – NB48 2.0 1/8th 4WD Competition Nitro Buggy Kit
Estimated Arrival: Mid-Late October
- Detailed Description
- Upgrade Parts
- Spare Parts
- Instruction Manual
- Setup Sheets
- Shipping Specs.
We’re excited to reveal the first vehicle based on a completely new 1/8th scale platform, the Tekno RC NB48 2.0 1/8th 4WD Competition Nitro Buggy. This new platform includes so many changes, simply calling it a .5 is not enough. It’s a ground-up original design where almost everything has been rethought, re-engineered and retooled.
NB48 2.0 Features
- 3mm CNC 7075 Aluminum Hard Anodized Lightened Chassis
- Independent Servo Mounts w/ Decoupled Battery and Radio Boxes
- CNC 7075 Shock Towers, Pivot Blocks, and Motor Mounts
- 16mm Bore Fluid Filled Shocks with CNC Delrin Pistons and Guides
- Double-Bearing Center Differential w/ Split Differential Mount
- Rear Hub and Arm Insert System w/ Adjustable Roll Center and Toe
- 3 Fluid Filled Easy Access Differentials
- Long Arm, Narrow Pivot Suspension Geometry
- 1-Piece Wing Mount and Ultra-Lightweight Wing
- 2nd Generation Quick Fueling Body
- Proven Tekno RC Durability
- All Metric Hardware
NB48 2.0 Differentials
Where do we start? Well, just about every car design or kit build starts with the differentials. They are the foundation that everything else is designed and built around. The main objectives with the new differentials were higher oil capacity, smoothness, and durability.
The second objective was smoothness. After years of improving the performance of our previous differentials, we took that knowledge and put it to work here. We decided on a slightly finer internal gear pitch that meshes better and produces less heat. Less heat results in greater consistency, virtually no fade, and the exceptionally long oil life we observed during testing.
Differentials endure some of the most extreme forces during a run and any diff issue pretty much ensures you’re not going to win the race. With these changes we feel we’ve made them even stronger. During our year of testing, the gears, pins, diff cases, and outdrives certainly stood up to all of the abuse we threw at them.
NB48 2.0 Bulkheads
The larger differentials meant that new bulkheads were required. We used this opportunity to implement some other features we’ve had on our list for a while, such as improving access to the front and rear differentials during maintenance. Let’s face it, if the diffs are hard to access you are less likely to service them or make a setup change. As mentioned above, time between maintenance on the diffs is much longer, but when you need to make that quick setup change before the A-main, you’ll appreciate how quickly and easily they are to access.
The sway bar system is all new and now rides on ball bearings. Smooth sway bar action is ensured without having to mess with set screws and imperfect adjustments. There will be plenty of sway bar options available at launch, consisting of 2.0-2.8mm front, and 2.2-3.0mm rear sway bar options.
NB48 2.0 Chassis and Radio Tray
Each electronic component has its own space on the chassis to minimize their influence on chassis flex. Up front, the steering servo is mounted to the front chassis brace. The battery box is integrated into the right side mud guard to keep the center of gravity as low as possible, while still maintaining independence from the other components.
You’ll find the throttle servo mounted directly to the center differential assembly. This not only improves braking efficiency and consistency, but it prevents the servo torque from pulling the center diff assembly over and altering the clutch bell/spur gear mesh during a race. Throttle servo longevity is also greatly improved.
In the back, the receiver box is sunken into the chassis for the lowest possible center of gravity. We designed the receiver and battery boxes to be the same dimensions so you can install the battery either in front or in the back. This can help you dial in more front or rear grip if your driving style or track conditions require it. The rear receiver box is also completely removable if you would like to further reduce weight by combining the receiver with a compact battery in front.
NB48 2.0 Suspension Geometry
There’s more to the new front and rear geometry of the NB48 2.0 besides the ultra-narrow pivot design. When designing the geometry this time around, we decided we would go back to a standard pivot to lengthen the arms for better bump handling. One thing led to another and the question was asked, “how long can we make them?”
The front end was especially challenging as we had set some lofty design goals for ourselves. There are a few different types of front end geometry currently utilized in offroad RC. The pillow ball (e.g. Mugen), the inset C-hub (e.g. Kyosho), and the outset C-hub (older Losi). It is apparent that the pillow ball and inset C-hub allow for the longest arms. But these systems sacrifice level dog bones (i.e. dog bone plunge-in or pull-out), or offer a less than optimal scrub radius (i.e. offset inside or outside the center of the tire).
RC racing has become more advanced and competitive over the years so it’s essential that new vehicles provide innovative adjustments to give you an advantage. The NB48 2.0 features a unique arm insert system that allows not only static toe adjustment at the hub, but also active toe adjustment.
The outboard static toe adjustment is useful for adjusting traction without changing the wheelbase or the angle of the inner hinge pin. Or you can use it to change the wheelbase or angle of the inner pin without changing static toe. The options are there to find the optimum setting for you.
Our new active toe system doesn’t require a second link or an additional spindle, just change the inserts according to what you need. You can add active toe in for more traction out of the corners on tight or loose tracks. Or choose active toe out for enhanced corner speed or bump handling on higher speed, higher traction layouts. It’s the type of innovation people have come to expect from Tekno RC.
Blank Setup Sheet:
NB48 2.0 Blank Setup Sheet – (editable, savable)
Filled Setup Sheets:
- 2019_05_01 - NB48 2.0 - Jared Tebo - Lone Star.jpg
- 2019_05_01 - NB48 2.0 - Jared Tebo - Silver State.jpg
- 2019_09_15 - NB48 2.0 - Jared Wiggins - LCRC.jpg
- 2019_09_23 - NB48 2.0 - Joe Bornhorst - Starting Setup.jpg
- 2019_11_01 - NB48 2.0 - Joe Bornhorst - Base Setup.jpg
- 2020_03_15 - NB48 2.0 - Joe Bornhorst - Holiday Hangover 2020.jpg
|Dimensions||15.75 × 9.4 × 6.5 in|