Haokixin CVT Drive Belts 669x18x30 mm — 6-Pack for 49–50cc GY6/1P39QMB Scooters, Durable Reinforced Replacement

These are six Haokixin CVT drive belts (669 mm diameter, 18 mm width, 30° pitch) made to replace worn belts on 49–50cc 4-stroke GY6 engines and compatible scooters, karts, mopeds, and ATVs.

If your scooter, go-kart or small ATV uses a 1P39QMB/GY6-style torque converter and the original drive belt shows cracks, glazing or slipping, this six-pack of Haokixin 669-18-30 belts gives you immediate replacements so you can get back on the road without downtime. Built from reinforced materials for repeated installation and typical commuter or recreational use, the set is sized to match many popular 49cc and 50cc engines and minimizes the need to source belts individually.

Which engines and models will these belts fit?

These belts are sized and shaped to work with many common 4-stroke 49cc–50cc GY6-style engines and the 1P39QMB family. They suit mass-market scooters, small ATVs and some karts that specify a 669 mm belt diameter and 18 mm width with a 30° pitch.

• Compatible engine types: GY6, 139QMB, 1P39QMB.
• Common brands included: Roketa, Tank, Jmstar, Taotao, Baja, Vespa-style, Jonway.
• Vehicle types: scooters, mopeds, go-karts, compact ATVs.

How do these belts perform compared to a single spare belt?

Buying this six-pack gives you multiple ready-to-install replacements so you can rotate belts or keep spares for fast roadside swaps. The set reduces service interruptions and usually costs less per belt than buying individually.

• Six belts in one purchase for extended service life.
• Reinforced construction resists typical wear and heat.
• Cost-effective for owners, shops, and fleet operators.

What are the exact dimensions and materials I should expect?

Each belt measures 669 mm in outside diameter, 18 mm across the working face, and utilizes a 30° pitch angle suitable for the corresponding CVT pulleys. Materials are selected for durability against heat, bending fatigue and belt slip under normal riding conditions.

• Diameter: 669 mm (outer circumference specification for correct fit).
• Width: 18 mm to match standard pulley grooves on many 49–50cc torque converters.
• Pitch: 30° angle designed to engage CVT sheaves properly.
• Construction: durable composite/resin and cord reinforcement for longevity.

How should I store and replace these belts to get the best life?

Keep unused belts flat in a dry, temperature-stable area away from direct sunlight and solvents to avoid premature hardening. When replacing, inspect pulleys, rollers and clutch surfaces for scoring or wear—installing a new belt onto worn components will reduce its lifespan.

• Storage: cool, dry place away from ozone and chemicals.
• Installation tip: clean pulleys and check roller condition before fitting.
• Maintenance: replace in matched sets if multiple drive components show wear.

Who is this for: Mechanics, scooter and ATV owners, rental fleets, and hobbyists who use 49cc–50cc GY6-style engines and want a ready supply of replacement belts. If you maintain a small fleet, perform regular DIY repairs, or need backup belts for trail or daily commuting use, this Haokixin six-pack is designed to keep your vehicles moving with minimal downtime.