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Beyond the top tube:Things to know when sizing up a road

Jan 29, 2018 · The actual length of a sloping top tube will always be shorter than the corresponding horizontal distance. While some geometry charts detail both measurements, most manufacturers provide the Bicycle Geometry Explained! - blog.jansJul 27, 2017 · Top Tube Length (Effective vs. Actual) Top tube length is another indication of length and fit of the front end of the bike. The actual top tube length is measured from the top and head tube junction to the top and seat tube junction. The effective top tube is measured horizontally from the junction of the head and top tube to the seat tube.

MTB Frame Geometry Explained - Mountain Biking Australia

    • Seat Tube Length. This is generally taken from the centre of the bottom bracket (where the cranks Top Tube Length (ETT) These days we generally look at the effective top tube (ETT) length rather Reach. Measuring the reach provides a far more reliable indication of a bikes size and character Stack. Stack height offers a good indication of how high the handlebars will feel. Looking at the Head Angle. This is the angle between the ground and the head tube at the front of the frame. It Seat Angle. These days, with all of the complex frame shapes and suspension designs, the seat Chainstay Length. This is the rear-centre measurement of the bike, taken from the bottom bracket Wheelbase. The wheelbase is pretty self-explanatory; it is simply the measurement from the front Bottom Bracket Height (or BB Drop) The bottom bracket height is a simple measurement from the New School vs Old. You may have heard people talk about new school geometry. Part of this refers MTB Frame Geometry Part 1:How It Fits - Singletracks Apr 12, 2012 · Top tube length is the distance measured from the steerer to the intersection with the seat tube. With modern bikes employing fancy curved top tubes, some makers list both the actual and the effective, or straight line measurement for this. If only one length is listed, it is usually the effective length. Mountain Bike Frame Size:How to Know if it Fits you ProperlyRather than using the measurement of the top tube, the effective top tube length (C) can be used, which is the horizontal distance from the center of the head tube (E) to the center of the seat post (A). This is a more reliable measurement Since it can be compared from bike to bike and it is often provided by online manufacturers. Mountain Bike Sizing & Fit Guide REI Co-opMountain Bike Effective Top Tube and Reach . Effective top tube (ETT) describes the horizontal distance between the head tube and the seat tube, regardless of whether you have a straight top tube or one that slopes down. ETT is a common measurement to look at when sizing a bike and is a good indicator of how long a bike will feel while youre seated.

      Mountain bike sizing:What size mountain bike do I need

      Jul 18, 2020 · A. Effective top tube length is the length of a virtual horizontal line drawn between the top of the bikes head tube to the centre of the seatpost at the same height. Understanding Bike Geometry Charts:What They Mean and Oct 25, 2018 · The measurement of a bicycles head tube is an area of essential importance, containing two key measurements that have a direct influence of a bikes handling; the angle and the length.. The head tube angle refers to the angle of the head tube to the ground and will commonly be described as either slack or steep. A slack head tube angle requires more effort to steer but is typically more stable What size bike do I need? A comprehensive bike size guideSep 15, 2020 · For example, a size M Giant TCR Advanced SL 0 Disc has an effective top tube length of 555mm while size M Ridley Helium SLX disc has a top tube length of 565mm the size small has an effective

      bike fit calculators, top tube length, etc BikeRadar

      Jul 24, 2014 · Depends on the geometry of the frame as you say. It's a theoretical top tube length measured as an imaginary horizontal line from head tube to seat tube. A compact frame has a sloping top tube while others can have a flat top tube. If the seat tube and head tube are the same distance apart, there's bound to be some difference in length of the actual top tube whilst the theoretical length Top Tube Length - Bike InsightsHowever, the effective top tube length remains constant at 561mm. Since both bikes will place the rider in the same position (given the same overall saddle height), effective top tube length is the more consistent way to compare the two. Effective Top Tube can hide underlying design issues