Road Bike Stem Sizes

What to do if you got your bike fit wrong.

Road bike stem sizes.

Standard iso size common for bars from the end of the 20th century. 1 stand in bare feet on a solid floor not carpeting with your feet 2 inches apart. Stems and seatposts help you achieve a proper bicycle fit. As a rule of thumb on a road bike you shouldn t run a stem much shorter than 90mm or much longer than 130mm.

It is a much more technical bike sizing method but it is slowly becoming the preferred method especially amongst higher end bikes. Italian road bike and bar standard. Riders like to get a long small and aerodynamic position of the bike e g spirited racers can choose for a longer 1200 mm stem for optimum stretch. Bontrager offers road and mountain bike stems in a variety of lengths and rises along with seatposts with a unique clamp design that makes them highly adjustable.

Generally speaking stem lengths on road bikes vary from 80 to 140mm with 100 to 110mm perhaps the most common sizes. As a rule if you sit between two sizes on a road or hybrid bike go smaller. Ride with more confidence and comfort with the perfect stem and seatpost for the way you ride. 31 7 31 8 depending on how manufacturers round down the inch dimension which is 1 1 4 modern oversized standard.

Stack and reach is the perfect number for how to determine bike size. 99 20 92 20. Wake mtb stem 31 8 90mm 110mm 0 60 degree adjustable bike stem mountain bike stem short handlebar stem for bicycle road bike mtb bmx cycling aluminum alloy lightweight black by wake 19 99 19. On the left is a 700 x 32 47mm inner tube.

If you need a stem length beyond those extremes your bike frame is the wrong size. With a few measurements you ll know what size stem you need to make riding your bike comfortable and efficient. The rise angle of stem from fork to bar has quite a large effect. This size specific approach goes a long way to getting you set up with the correct stem length providing you ve chosen the right size frame another area where a bike fit comes in useful.

The most significant thing while choosing a road stem is the length of the stem may be the key factor for overall fit of the bike. Stems are available to fit a range of steerer tube sizes with 1 1 8 being by far the most common on both mtb and road bikes. Titan obsolete standard.