Product Description
The 3205 12" Rear Wheel Assembly represents the pinnacle of pit bike wheel engineering, combining rugged durability with race-ready performance. This complete rear wheel solution features a 1.85x12" black powder-coated steel rim with high-tensile stainless steel spokes, creating the perfect balance of strength and style. Designed specifically for Thumpstar TSC models, this wheel assembly delivers superior traction, stability, and control for aggressive riding.
Military-Grade Construction & Precision Engineering
✔ Heavy-Duty 1.85x12" Steel Rim
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12-gauge steel construction for maximum impact resistance
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Widened 1.85" profile for improved tire stability and cornering grip
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Electrostatic powder-coated black finish for corrosion resistance
✔ Aerospace-Grade Stainless Steel Spokes
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304 stainless steel construction (8-gauge thickness)
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Mirror-polished finish resists rust and corrosion
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4-cross lacing pattern for optimal load distribution
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Pre-stressed and tensioned for immediate ride readiness
✔ High-Performance 4-Bolt Hub Assembly
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CNC-machined from 6061-T6 aluminum billet
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Hard-anodized surface treatment (Type III)
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Dual-sealed industrial bearings (6202-2RS)
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Pre-installed 4-bolt sprocket mounting pattern
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Compatible with standard 420/428 chain systems
Technical Specifications
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Wheel Diameter: 12 inches
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Rim Width: 1.85 inches (47mm)
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Spoke Count: 36 (18 inner/18 outer)
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Axle Size: 15mm (included)
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Hub Width: 110mm (center-to-center)
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Sprocket Mount: 4-bolt pattern (standard 65mm BCD)
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Weight: 5.2 kg (complete assembly)
Performance Advantages
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Enhanced Power Transfer: Stiff wheel construction minimizes energy loss during acceleration
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Superior Impact Resistance: Heavy-duty components withstand big jumps and hard landings
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Improved Cornering Stability: Wider rim profile optimizes tire contact patch
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Reduced Unsprung Weight: Precision-balanced assembly improves suspension response
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Low-Maintenance Design: Stainless spokes and sealed bearings require minimal upkeep
Precision Fitment
Engineered as a direct bolt-on replacement for:
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Thumpstar TSC110 (all model years)
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Thumpstar TSC125 (2016+ versions)
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Thumpstar TSC140 (Pro and Race editions)
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Compatible with most pit bikes using 12" rear wheels and 4-bolt sprocket mounting
Track-Ready Features
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Pre-Greased Bearings: Ready for immediate installation
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Pre-Installed Valve Stem: Includes high-flow 8mm rubber stem
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Dynamic Balancing: Factory-balanced for vibration-free performance
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Universal Sprocket Compatibility: Works with 36T to 52T rear sprockets
Complete Package Contents
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1 x Fully assembled rear wheel
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Pre-installed 4-bolt hub
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Stainless steel spokes and nipples
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15mm axle with mounting hardware
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Detailed installation guide
Ideal Applications
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Motocross and supercross practice bikes
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Mini road racing applications
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Hardcore pit bike enthusiasts
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Adult pit bike racing series
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Youth racing development programs
