Thumpstar Performance 14" Front Wheel Assembly - 3936 Black Alloy Rim w/ 7075 Stainless Spokes & 15mm Axle - Fits TSB110/TSK110/TSB125E/TSX125/TSR140

The 3936 14" Front Wheel Assembly represents the pinnacle of pit bike front wheel engineering, combining aircraft-grade aluminum construction with race-proven durability. This complete front wheel assembly features a 1.4x14" black anodized alloy rim laced with 7075 stainless steel spokes to a precision-machined 15mm axle hub, delivering unmatched performance for large-frame Thumpstar models.

Aerospace-Grade Construction Details

High-Performance Alloy Rim

• Forged 6061-T6 Aluminum Construction

  • 30% lighter than steel rims for improved suspension response

  • CNC-machined bead seats for perfect tire sealing

  • Hard-anodized black finish (25μm thickness) for wear resistance

  • Impact-tested to withstand 3x normal riding loads

Military-Spec Spoke System

• Aircraft-Grade 7075 Stainless Spokes

  • 40% stronger than standard 304 stainless spokes

  • 9-gauge thickness (4.1mm diameter) for maximum strength

  • 3-cross lacing pattern optimized for front wheel loads

  • Pre-tensioned to 100kgf with vibration-resistant nipples

  • Salt-spray tested for 2000+ hours corrosion resistance

Precision Hub Assembly

• CNC-Billet 7075 Aluminum Hub

  • Hardness-rated to 150 BHN

  • Dual sealed ceramic hybrid bearings (6902-2RS)

  • 15mm hardened chromoly axle (HRC 38-42)

  • Laser-etched alignment marks for easy installation

  • Compatible with standard disc brake rotors

Technical Specifications

• Wheel Diameter: 14 inches (355.6mm)

• Rim Width: 1.4 inches (36mm)

• Overall Width: 4.25 inches (108mm)

• Hub Width: 100mm (center-to-center)

• Axle Diameter: 15mm (included)

• Spoke Count: 36 (radial/inner cross pattern)

• Weight: 3.2 kg (complete assembly)

• Max Load Rating: 120kg (265lbs)

• Max Speed Rating: 120km/h (75mph)

Performance Advantages

• Unsprung Weight Reduction: Lighter alloy construction improves suspension response

• Enhanced Steering Precision: Stiffer spoke pattern provides razor-sharp handling

• Superior Impact Absorption: Forged rim design dissipates impact energy

• Optimized Braking Performance: True-running rim ensures consistent brake contact

• Vibration Elimination: Precision balancing to <3g at all speeds

Exact Fitment

Engineered specifically for:

• Thumpstar TSB110 (2018+ models)

• Thumpstar TSK110 (Pro Series)

• Thumpstar TSB125E (Electric version)

• Thumpstar TSX125 (All variants)

• Thumpstar TSR140 (Race Edition)

Track-Ready Features

• Pre-Installed Ceramic Bearings: 30% less friction than standard bearings

• Dynamic Balancing: Computer-matched to 0.01mm radial tolerance

• Anodized Surface: Resists scratches from brake dust and debris

• Tool-Free Axle Adjustment: Includes precision-machined spacers

Complete Package Contents

• 1 x Fully assembled front wheel

• 15mm chromoly axle with spacers

• 7075 stainless steel spoke set

• High-grade mounting hardware

• Technical installation manual