Class is in session, and this time we’re talking about the difference between reach and top tube length, which both have to do with the length of the front half of the bike, but have very different effects on the trail. What MTB geo number do you want to learn about next! 🐐 🐐 #99spokes #allthebikes #mtb #mountainbike #mountainbiking #cycling #mtbgeo #mtbgeometry #bikes