Universal Parts 12mm axle adjuster set - pair of zinc-plated steel chain tensioners with M6 threaded rod, T-bar, and lock nut for Mini Bikes and Pocket Bikes Universal Parts 12mm axle adjuster set - pair of zinc-plated steel chain tensioners with M6 threaded rod, T-bar, and lock nut for Mini Bikes and Pocket Bikes
Universal Parts 12mm axle adjuster set - pair of zinc-plated steel chain tensioners with M6 threaded rod, T-bar, and lock nut for Mini Bikes and Pocket Bikes

Universal Parts

Universal Parts 12mm Axle Adjuster Set - Mini & Pocket Bike

SKU 103-32
$5.00
Shipping calculated at checkout.
Description

Keep your drive chain properly tensioned and your rear wheel centered with this Universal Parts 12mm Axle Adjuster Set. Sold as a pair with integrated washers and lock nuts, these zinc-plated steel adjusters are a heavy-duty upgrade over the thin factory tensioners found on many mini bikes, pocket bikes, and pit bikes. The M6x1.0 threaded rod gives you fine, repeatable adjustment — turn each side equally to keep the axle square in the swingarm.

Key Features

  • Zinc-plated steel — corrosion resistant, threads stay smooth after mud and rain exposure
  • 12.4mm inner diameter — smooth slide-on fit over standard 12mm axles without binding
  • M6 x 1.0 threaded rod — fine pitch for precise, repeatable chain tension adjustment
  • Includes washers and lock nuts — complete hardware, settings won't vibrate loose
  • Sold as a set of 2 (left and right)

Specifications

  • Axle Compatibility: 12mm
  • Inner Diameter: 12.4mm
  • Overall Length: 68.4mm
  • Thread Pitch: M6 x 1.0
  • Finish: Zinc-plated steel
  • Quantity: Set of 2 (left & right)
  • SKU: 103-32 | MPN: 4948

Compatibility

Vehicle Type Compatible Models
Mini Bikes Mega Moto 80/105, MotoVox MBX10, Monster Moto 80cc, Coleman CT100U
Pocket Bikes 47cc/49cc MTA1 (Cagliari), MTA2, Lucky 7 Series
Dirt / Pit Bikes Coolster, Roketa, TaoTao 70cc–125cc models with 12mm axles
Electric Scooters Razor MX500/MX650 rear axle and similar e-moto platforms

Installation tip: Aim for 15–20mm of vertical play at the center of the chain. Turn each adjuster an equal number of turns to keep the rear wheel centered in the swingarm.

California Prop 65 Warning: www.p65warnings.ca.gov
Product Diagrams
Features
  • Zinc-plated steel for corrosion resistance
  • 12.4mm ID - smooth fit over 12mm axles
  • M6x1.0 fine-pitch thread for precise adjustment
  • Includes washers and lock nuts
  • Sold as a set of 2 (left and right)
Specifications

Axle: 12mm | ID: 12.4mm | Length: 68.4mm | Thread: M6 x 1.0 | Finish: Zinc-plated steel | Qty: Set of 2 | SKU: 103-32 | MPN: 4948
Model Fitments

Mini bikes: Mega Moto 80/105, MotoVox MBX10, Monster Moto 80cc, Coleman CT100U; Pocket bikes: MTA1/MTA2/Lucky 7 47-49cc; Pit bikes: Coolster/Roketa/TaoTao 70-125cc (12mm axle); Razor MX500/MX650
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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