Integrated Bicycle Gas Frame 3.4L w/o Kickstan，Fuel Tank Built Bicycle Frame，Gas Motorized Bicycle 66cc/80cc，Black Bicycle Gas Frame with Gas Tank Built in

Versatile Use：This bicycle air rack is expertly designed to fit both 2-stroke and 4-stroke engines. Whether you own a bike with a 2-stroke engine for lightweight commuting or a 4-stroke engine for heavier-duty use, this rack provides a reliable and secure mounting solution

• 🚴Versatile Use：This bicycle air rack is expertly designed to fit both 2-stroke and 4-stroke engines. Whether you own a bike with a 2-stroke engine for lightweight commuting or a 4-stroke engine for heavier-duty use, this rack provides a reliable and secure mounting solution
• 🚴Precise Sizing for Perfect Fit：To ensure seamless installation, this air rack adheres to strict size requirements: 1 1/8” headset size, 1.732” (44mm) bottom bracket diameter, 27.2mm seatpost size, 42mm bottom tube diameter, and 31.8mm seatpost clamp size. Additionally, it features a 1.732-inch (44mm) OD center axle. These precise specifications guarantee compatibility with bikes that match the dimensions, saving you time and avoiding ill-fitting issues
• 🚴Secure Mounting for Stable Performance：Crafted with a focus on stability, the rack’s adherence to standard sizing (including the 44mm bottom bracket and center axle) ensures a tight, wobble-free fit once installed. This secure mounting protects your bike’s components from unnecessary stres
• 🚴Important Safety Note：If your bike is equipped with a rear wheel quick release, we strongly recommend avoiding this air rack unless you are a professional. Professional expertise is required to ensure proper installation and safety with quick-release systems; improper use may lead to instability or component damage
• 🚴Durable Design for Long-Lasting Reliability：Its construction is tailored to handle the demands of both 2-stroke and 4-stroke engine setups, as well as the standard-sized components it’s designed for. This durability ensures the rack remains a reliable part of your bike setup for years, providing value and peace of mind with every ride