apparently the 85 and 86 diameter is 35mm(same as the 85 tri-z 250), earlier years are smaller diameter.
Racing
41mm
34mm
The best method to measure the steerer tube diameter on a bicycle fork is to use a caliper or a ruler to measure the outer diameter of the tube at the top of the fork where it meets the stem. This measurement will help you determine the correct size for any replacement parts or upgrades.
41mm
The front fork tubes in a 1996 Suzuki Intruder VS 800 are 40mm.
The standard fork measurements for a bicycle typically include the steerer tube diameter, fork length, and rake. The steerer tube diameter is usually around 1 1/8 inches, the fork length can vary but is often between 350-400mm, and the rake is typically around 45-50mm. These measurements can vary depending on the type of bike and its intended use.
41 mm.
43mm stock. There was a size increase in the 1993 Model year.
When measuring bike fork measurements, key factors to consider include the fork's steerer tube diameter, axle-to-crown length, offset or rake, and compatibility with the wheel size and brake type. These measurements are important for ensuring proper fit and performance of the fork on the bike.
When choosing a replacement bicycle fork, key factors to consider include the type of riding you do (such as road or mountain biking), the material of the fork (such as carbon fiber or aluminum), the steerer tube diameter and length, the axle type, and the suspension type (if applicable). It is important to ensure that the replacement fork is compatible with your bike frame and will meet your specific riding needs.
The head tube diameter of the bicycle frame you are looking to buy is the measurement of the opening at the front of the frame where the fork is inserted. It is an important factor to consider for compatibility with other components.