Team Associated RC8B4.1 Truggy Team Kit

Kit
This vehicle is supplied as a kit and must be fully assembled by the user. The kit does not include a motor, pipe and header, transponder, servos, receiver, wheels, or tires. Assembly and painting required.

Overview

The Team Associated RC8B4.1 RWB is the refined evolution of the 2022 IFMAR World Champion RC8B4, built for top performance on outdoor tracks. With a stiffer, tapered chassis for improved high-speed stability and a lower center of gravity, it delivers improved handling and balance. New low-center-of-gravity shock towers, shorter shocks, and 3-hole rear springs enable a smoother setup without sacrificing cornering support. Wide rear hubs with carbon-fiber towers provide versatile geometry options, while the universal 92 mm hubs and optimized gearing ensure smooth, consistent power and maximum grip on rough terrain.

Features

• New RC8B4.1 RWB chassis and side guards with a tapered chassis design for greater rigidity and predictability
• New low-center-of-gravity, lightweight aluminum front and rear shock towers
• New shorter 16 mm front and rear shock bodies for a lower center of gravity and reduced weight
• New 6-hole 1.4 mm front and 1.5 mm tapered rear shock pistons, including emulsion shock cap seals
• New 3-hole rear suspension arms with updated sway bar geometry for both smooth and bumpy tracks
• New durable rear hub design with a wide footprint and adjustable 3 mm carbon-fiber hub towers
• New blue aluminum upper arm mount for added durability
• New molded RC8B4.1 front bumper with an optimized profile for bumpy transitions
• New 47T machined gear
• 44/13 ring and pinion gear set
• 92 mm universal driveshafts with 17 mm outdrives
• Updated Soft Blend suspension arms for maximum durability in cold weather
• New +1 aluminum steering block arms for sharper steering in low-grip conditions

RC8B4.1 Team Kit Legacy Features

• The innovative new ball-joint front suspension geometry improves steering balance and provides predictable handling in all conditions.
• The RC8B4 8-degree steering blocks are combined with a wider upper suspension arm pivot for greater stability and consistent steering throughout the entire steering range.
• The RC8B4 gearboxes are made from the latest hard material also used on the RC8T4: 1) The front gearbox has a 3.5-degree angle for the pinion to straighten the center driveshaft, resulting in greater drivetrain efficiency and reduced phasing and vibration. 2) Both gearboxes have larger bearings; a 6x13x5mm flange bearing results in longer bearing, ring gear, and pinion gear life.
• The latest version of the RC8B4 fuel tank with: 1) Flexible rubber lid puller. 2) Updated spring for a proper seal between the lid and tank.
• The RC8B4 rear chassis brace has various design features and flexibility options: the rear brace is mounted centrally on the gearbox and has two screw points through the chassis for adjusting flex.
• The RC8B4 front upper suspension arms are now made from soft material. Includes an optional molded “wing” insert for increased front-end downforce.
• The RC8B4 front lower suspension arms are now made from soft material. 1) Updated design for increased durability. 2) The new angled, one-piece sway bar is mounted in line with the sway bar using a BHCS instead of a shock pin for simplified installation. 3) Optional inserts are mounted only on the top.
• The RC8B4 rear wing mount features adjustable shims for the wing angle, significantly improved strength, an aerodynamic shape, and additional space for adjusting the shock position. Two wing-height options are available on the rear shock tower.
• The RC8B4 rear wing has more vertical fins for greater straight-line stability, a higher rear lip for increased downforce, greater strength in various areas to reduce flex fatigue, and dimples on the rear as a template for cutouts.
• The RC8B4 steering bellcranks feature a top-mounted steering rack for additional space around the gearbox.
• The RC8B4 aluminum steering rack, designed around the updated front-end geometry, is lightweight and durable.
• The RC8B4 bellcrank nuts are longer to reduce steering rack resistance during flex.
• The RC8B4 steering servo link features a new, robust ball-and-steel threaded screw connection.
• The blue aluminum suspension arm mounts of the RC8B4 A and B are shaped to fit into the chassis.
• The RC8B4 front carbon-fiber top plate centers the front chassis brace for balanced flex in all directions.
• The RC8B4 front chassis brace is the same length as the older short chassis version for ideal front-end flex.
• The RC8B4 front body post is recessed into the front top plate, and its reversible design is easy to install.
• The RC8B4 spring cups and shock absorber rod end have a retaining screw to keep the cups in place during a crash.
• Steel spacers for the RC8B4 shock absorber.
• Large-diameter, low-profile SHCS are used throughout the buggy to replace a traditional screw-and-washer system. They are used on the fuel tank, servo mounts, and rear body tube.
• New exhaust mount and spring.
• New carbon-fiber radio tray for a relocated steering servo.
  93.5 mm front and 104 mm rear in the center, with 3x14 mm pins for greater drivetrain efficiency.
• The two-piece rear body tube of the RC8B4 features a rubber grommet for some flexibility and a longer body life.
• The RC8B4 rod ends feature improved threading, a slot for easy access with a turnbuckle wrench, and are made from the same durable material as our 1:10 rod ends.
• Standard wheel hex sizes include "+0" mm front and rear.
• Standard sway bar sizes include a 2.2 mm front bar and a 2.5 mm rear bar.
• RC8B4 Mu (pronounced "mew") body with added RWB trim lines. Includes three different gearbox nose options: a traditional nose cone, a mid wing, and a high wing.
• 44T ring and 13T pinion gears on the front and rear differentials.
• RC8B3.2 battery and receiver box with removable transponder mount.
• RC8B3.2 split center differential mounts with aluminum center plate.
• 16 mm shocks equipped with white front springs (9.25 rate) and pink rear springs (12.0 rate), emulsion-style shock bladder, combined bleed/emulsion caps, and blue aluminum spring collars.
  RC8B3.2 narrow C- and D-arm mounts.
• 4-shoe aluminum clutch with two composite and two aluminum shoes, two 0.95 mm and two 1.0 mm springs, and a steel 13T clutch bell.

Required to complete

• .21-class rear-exhaust engine.
• Exhaust system: muffler and exhaust manifold, or exhaust spring.
• 2- or 3-channel radio/transmitter set with switch (2.4 GHz recommended).
• Batteries for the transmitter.
• 4.8–7.4 V receiver battery. Choose one: 1) Flat NiMH battery. 2) Flat LiPo battery (#27313 Reedy Lipo Pro TX/RX 2400 mAh 7.4 V flat battery). 3) Flat LiFe battery (#27315 Reedy LiFe Pro TX/RX 1600 mAh 6.6 V flat battery).
• Fuel bottle (#1747 Fuel Bottle Pro 500cc recommended).
• Glow igniter (#27377 Reedy Glow Starter recommended).
• Starter box (#1751 FT Starterbox recommended).
• Model car fuel (20–30% nitro recommended).
• 1:8-scale buggy tires.
• 1:8-scale buggy wheels.
• CA (cyanoacrylate) glue (#1597 FT Tire Glue recommended).
• Polycarbonate-specific spray paint or polycarbonate-specific paint in bottles for use with an airbrush.
• Thread-locking compound (#1596 FT Threadlocker recommended).
• Needle-nose pliers.
• Hobby knife.
• Reamer (#1499) or body hole punch for making holes in the body.
• Ride-height gauge.
• Steering servo (#27153 RT5012A HV Digital Competition 1:8 Servo).
• Throttle servo (#27153 RT5012A HV Digital Competition 1:8 Servo).
• Other useful items: Silicone shock absorber fluid. Silicone differential fluid. Body scissors (#1737 recommended). Body reamer (#1499). Body hole punch. Shock pliers (#1681 FT Shock Shaft Multitool). FT hex wrenches: #1518, #1506. FT nut drivers (#1519 recommended). Hobby knife. Needle-nose pliers. Wire cutters. Calipers or a precision ruler. Turnbuckle wrench (#1114 recommended).