Motorcycle Frame & Chassis FAQ
Often, late-model motorcycles with aluminum frames use the engine as a stressed member, that is, the engine acts as part of the structure of the chassis. This type of design was patented way back in 1900, and utilized by makes such as Vincent, as well as modern super bike manufacturers.
Lowbrow Customs hardtails and frames are made of DOM tubing, which stands for 'drawn over mandrel'. This ensures a consistent outside and inside diameter, and thus, wall thickness. This is high-quality tubing that does not have a weld seam in it, as we want our frames to be as durable as possible.
If you would like the frame to sit level with the ground, this means you would also need to shorten the front end 2 inches. This can be accomplished by using different length fork tubes or raking the neck of the frame. Some builders are looking for a different stance, but be sure to properly calculate the rake and trail of the motorcycle to ensure proper handling.