This consists of 5 parts: longer reach, steeper seat tube angle, shorter stem length, slacker head tube angle, and last, reduced fork offset. In 2017, Transition fully redesigned their bike line up for their 2018 model year, with a new geometry concept called SBG, Speed Balanced Geometry. This fork offset has gained recent traction by most notably Transition bikes, but other companies like GeoMetron, Whyte, and even Specialized have been spec’ing bikes with non-standard fork offsets for a bit now (hate to use the term standard in this industry). Reduced Fork Offset = Longer Trail Number Slacker Head Tube Angle = Longer Trail Number We will get into how these affect handling in a bit. Below is a picture that should help put these definitions into use. By reducing the fork offset, you will also make the trail longer. By making the head tube angle slacker (decreasing the angle) you will make the trail longer. Both the headtube angle and fork offset can change the length of the trail number. By finding the offset and headtube angle, you can figure out the next piece of this large puzzle, trail, which is the distance you get between the contact point of the front wheel and where the steering axis line hits the ground (see diagram below). Fork offset is the measured distance from the steering axis (straight down the headtube) to the mounting point of the front wheel. What Exactly is Fork Offset?įirst things first, let's explain what fork offset is and how it affects your ride. We all remember when bikes had 3 chainrings in the front, brakes did not brake well, stems were long, and head tubes well.were not slack.
While different fork offsets have been a discussion between engineers and race teams for a few years, it has now trickled down to the consumer giving you another option to think about.
After reading tons of articles, talking to people in the industry (some very talented engineers), and doing my own testing, I have begun to finally grasp this new topic. Diving into some fork offset talk, I first want to say that I am nowhere near an engineer, just a bike nerd who wants to wrap his brain around the options we now have. We all know how opinions are, everyone has one and they all stink. Padded / Protective Short Liners / Chamoisįork offset is a damn tricky topic and like many things in the mountain bike industry, there are options and with options you have varying opinions.Drop-bar Hydraulic Brake / Shift Levers.
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