Question: what is the difference between wide glide and narrow glide?
Answer: The spacing dimension for Wide Glide forks is 9.875" between fork tube centers. By comparison, a 'Mid-Glide' is 8.875" between fork tube centers, and a 'Narrow-Glide' is 7.00" between fork tube centers. The original Wide Glide front forks measured 1-5/8" in diameter.