Team Associated updates RC10B84.1 and RC10B84.1D 1/10 Team Kits with durability and drivetrain changes

# What changed on the B84.1 platform

# Notable hardware updates

The headline changes are mechanical and setup-oriented rather than cosmetic. Highlights listed by the manufacturer include:

• Height-adjustable gearboxes to tune drivetrain efficiency and reduce parasitic loss.
• Wide tongue chassis to increase strength where loads concentrate.
• V2 side rails redesigned to work with the wider tongue chassis.
• Wide A and B suspension mounts for updated geometry options.
• 73mm gull-wing front arms to change roll and steering behavior.
• Carbon fiber front shock tower engineered for the 73mm arm geometry plus a molded shock tower cover.
• V2 steering posts and bellcranks intended to reduce vertical movement in the steering rack.
• Long HD differential outdrives on the rear diff and 66mm rear CVA bones.
• New A and D mount 0.7mm shims for fine-tuning.

These items affect chassis stiffness, suspension geometry and how efficiently power transfers to the wheels. The carbon front shock tower is explicitly tied to the new 73mm arm geometry, so expect a different front-end response compared with earlier B84 variants.

# What this means for racers

• Tunability: The height-adjustable gearboxes plus new mount/shim options give more control over drivetrain alignment and weight distribution without major component swaps.
• Durability: A wider tongue chassis, V2 side rails and longer HD diff outdrives point toward improved toughness under heavy impacts and high loads common in competitive racing.
• Handling changes: The 73mm gull-wing front arms and the carbon shock tower will change front roll center and suspension kinematics. Racers should plan setup time to find the right combination for their track.
• Steering precision: Updated steering posts and bellcranks that reduce vertical movement should keep steering geometry more consistent under load, which helps repeatability through cornering.

# Pricing and kit options

Two team kits were announced with different price points: the RC10B84.1 is listed at $639 and the RC10B84.1D at $619. Both are team kits, so they will require the usual electronics, motor, batteries and radio gear to be race-ready.

# Short checklist for evaluating the kits

• If you already run a B84-series car, identify the parts you can swap onto your existing chassis (gearbox pieces, side rails, shock tower) to gain benefits without buying a full kit.
• Expect to allocate time on the setup stand to dial in the new 73mm arm geometry and gearbox height settings.
• If durability or drivetrain efficiency have been weak points for you, the revised tongue chassis and longer outdrives directly address those areas.

# Where it was reported

# Quick summary

Team Associated's RC10B84.1 and RC10B84.1D updates focus on durable chassis structure, tunable drivetrain geometry and revised steering and front-end suspension hardware. The changes are practical and aimed at competitive racers who want mechanical options for improving lap times and reducing breakage under race conditions.