LotFancy 12.5x2.75 Knobby Tyre & Inner Tube Set for Razor MX350/MX400 — IIR Compound, TR13 Valve

LotFancy 12.5x2.75 tire and inner tube set is a heavy-duty, knobby replacement designed to fit Razor Dirt Rocket MX350/MX400, X‑Treme X‑560 and other scooters or mini bikes using 12-1/2 x 2.75 tires.

This replacement kit pairs a brand-new isobutylene isoprene rubber (IIR) knobby tire with an inflatable inner tube that uses a TR13 straight stem and protective cap. The tire is built for traction on loose surfaces and engineered for better air retention, damping, and aging resistance compared with many natural rubber recaps. The set is aimed at riders who need a durable, puncture-resistant option that matches the 12-1/2 x 2.75 sizing commonly found on small dirt rockets, pocket bikes, and many Chinese-made scooters.

Will this tire and tube fit my Razor Dirt Rocket or X‑Treme scooter?

Yes—this kit is sized specifically for 12-1/2 x 2.75 wheels commonly installed on Razor MX350 and MX400 Dirt Rocket models, as well as the X‑Treme X‑560. Always verify the tire diameter and width stamped on your current tire or in your owner’s manual before ordering.

• Exact sizing: 12-1/2 x 2.75 (12.5 x 2.75)
• Works with many mini bikes, pocket bikes and Chinese electric/gas scooters using same size
• Includes inner tube with TR13 straight valve stem and cap for compatibility

How does the construction affect durability and performance?

The tire is made from isobutylene isoprene rubber rather than a recap, which improves airtightness and resistance to aging and cracking. The knobby tread pattern helps maintain traction on dirt, gravel, and uneven surfaces while the tire compound provides elastic damping to absorb small bumps.

• IIR compound for improved air retention and longer life
• Knobby tread for traction on loose terrain
• High puncture and tear resistance to reduce roadside failures

What’s included and how easy is installation?

The set contains one new LotFancy knobby tire and one inflatable inner tube with a TR13 straight valve stem and protective cap. Basic wheel dismounting and mounting tools are needed; if you’re comfortable changing small scooter tires, the swap is straightforward—otherwise a local bike shop can install it quickly.

• One LotFancy 12.5x2.75 knobby tire (brand-new)
• One inner tube with TR13 straight stem and valve cap
• Compatible with standard small-scooter mounting procedures

How should I maintain tire pressure and prolong service life?

Keep the recommended pressure from your scooter manual, check PSI before each ride, and inspect for embedded debris after off-road use. Proper inflation reduces rolling resistance and prevents pinch flats; cleaning and storing the scooter out of direct sun will reduce premature aging.

• Check tire pressure before riding and tighten valve cap after inflation
• Inspect for cuts, embedded objects, and sidewall damage regularly
• Store in a cool, dry place out of prolonged sunlight for longer life

Who is this for: The LotFancy 12.5x2.75 Tire & Inner Tube Set is intended for owners of Razor Dirt Rocket MX350 and MX400, X‑Treme X‑560, pocket bikes, mini bikes and similarly sized scooters who want a durable, treaded replacement. It suits riders who need improved air retention and tougher puncture resistance than many recap options, and for anyone replacing worn-out tires before a season of off-road or mixed-surface riding.