4in Spiky Wheel - Hub and Tread Bundle

The 4in Spiky Wheel - Hub and Tread Bundle includes everything needed to outfit a full 4in EasySwerve drive with high-traction 4in Spiky Wheels and a complete set of replacement treads. The bundle contains four (4) precision machined aluminum hubs, eight (8) Spiky treads, and fifty (50) button head #10-32 3/8in screws, giving teams a full competition-ready setup plus a backup set of treads for the season.

Designed specifically for the 4in EasySwerve Module, these hubs and treads deliver exceptional grip and performance on FRC carpet. The machined and balanced aluminum hubs include integrated counterbores for easier screw installation for tread installation. The Spiky treads are molded from 95A TPU and feature an aggressive carpet-engaging spike geometry that maximizes traction without damaging field surfaces.

Whether you're building a new robot or upgrading your existing drivetrain, this bundle provides a complete, competition-grade wheel solution for 4in EasySwerve modules.

Features

High Traction TPU Spiky Treads

• Molded from TPU with a Shore A durometer of 95 for long-lasting grip
• Spike geometry increases coefficient of friction on carpet without causing excessive wear
• Slight curvature along the 11.33in length ensures a secure fit around the 4in aluminum hub
• Eight (8) included treads provide a full replacement set for in-season maintenance

Precision Machined Aluminum Hubs

• Balanced aluminum construction for consistent rotational performance
• Five (5) #10-32 threaded holes with counterbores for secure tread attachment and easier screw insertion
• MAXSpline bore for compatibility with 4in EasySwerve modules
• Twelve (12) #10 clearance holes (six on a 1.97in bolt circle and six on a 2.5in bolt circle) to support multiple mounting layouts in other applications
• Wide 1.44in profile improves traction footprint and power transfer

Complete Hardware Included

• Fifty (50) #10-32 x 3/8in button head screws included for tread mounting
• Enough hardware to assemble all four hubs with additional screws available for future replacement

Built for EasySwerve

This bundle is tailored for teams using the 4in EasySwerve Module. Four hubs fully outfit a standard swerve drivetrain, and the included extra treads let teams quickly refresh traction between matches.

Specifications

4in Spiky Wheel - Aluminum Hub

• Material: 6061 Aluminum
• Finish: Black Anodized
• Diameter: 93mm (3.66in)
• Width: 36.5mm (1.44in)
• Bore: MAXSpline
• Mounting Holes:
  • 5x #10-32 threaded holes for treads
  • 12x #10 clearance holes
    • 6 on 1.97in bolt circle
    • 6 on 2.5in bolt circle
• Weight: 245g (0.54lb)

4in Spiky Wheel - Tread

• Profile: Slight curvature to match hub circumference
• Design: Spiked traction elements for improved carpet interaction
• Material: Injection molded TPU
• Durometer: 95A
• Length (flat): 287.8mm (11.33in)
• Width: 36.6mm (1.44in)
• Thickness: 8.6mm (0.34in)
• Weight: 58g (0.128lb)

Kit Contents