![]() Most stems fitted on off-the-shelf bikes have a moderate amount of rise however, stems with a more extreme amount of rise provide the option to significantly adjust the position of your handlebar. Rise refers to the angle of the stem relative to the fork's steerer tube and typically ranges from six degrees to 20 degrees, though most stems fitted as standard on bikes are at the lower end of the scale. Stem rise The increased stack, positive rise stem and bars here make for a truly lofty cockpit. However, a professional bike fit will help you hone in on the perfect setup, and factor in the influence of stem length on the rest of your position. We'd recommend experimenting with a different stem length if you want to make small, incremental adjustments to your riding position or the handling of your machine. On the flip side, if you're feeling cramped on the bike, using a slightly longer stem will increase the reach. On that note, you can also change your stem length to adjust the reach from the saddle to the handlebar.Ī shorter stem will reduce the reach and provide a more upright position, which might help if you're feeling too stretched out. Generally speaking, a shorter stem will result in faster handling, while a longer stem will result in slower, more predictable handling.Īs a result, fine-tuning the stem can be one way to tweak the handling of your bike – but remember, your stem doesn't exist in isolation and changing the stem length will also impact your position on the bike. ![]() Stem length is one of a number of factors, along with head tube angle and fork rake, that affects a bike's handling. Gravel bike stems typically sit somewhere between the two. Mountain bike stems are typically around 50-80mm long, while road bike stems are longer, starting at around 80mm and extending to 120mm or longer as the frame size increases. The length of a stem is one of the most important factors to consider if you are looking to change the stock option on your bike. The geometry of a bike stem Stem length Stem length has a big impact on the overall fit and ride of your bike. That's the basics covered but, as with all bike parts, there are exceptions and complications. We’ll explain the significance of both later. There’s also usually a slight angle between the steerer tube clamp and the long axis of the stem. The length of your stem can have a significant impact on the fit and handling of your bike. Ian Linton / Immediate Mediaīetween the stem faceplate and steerer tube, the stem is made up of a length of aluminium or carbon fibre, though titanium is occasionally used. Here, the stem holds the steerer tube in place in the headset.Īt the other end of the stem, there’s usually a faceplate connected with four bolts, two at the top and two at the bottom, to hold your handlebar in place. ![]() ![]() On a basic level, the stem has a simple job: to connect your handlebar with the fork steerer tube and, with it, the rest of the bike.Īt one end (nearest to the rider if sitting on the bike), the stem has a hole through it top to bottom, with pinch bolts to clamp it to your bike’s steerer tube. What is a bike stem? Zipp's Service Course stem. You can also use the links below to jump to the relevant section. With that in mind, here's everything you need to know about bike stems. There's plenty to consider if changing or upgrading your stem, from its length and angle to the material a stem is made from and compatibility with your handlebar and steerer tube. However, the stem has a significant effect on your bike’s geometry and, as a result, the handling and your ride position. On the face of it, the stem may seem like a fairly mundane, if essential, bike component, connecting the fork steerer to your handlebars.
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