FAQ: What Size Is Giant Medium Road Bike?

What size is my giant bike frame?

Take the inside leg measurement to the floor. Subtract 3” for mountain bikes, or 1” for road bikes, then subtract 10” which is the average distance from the bottom bracket to the ground. This will then give the approximate frame size that will be needed.

Is a 17.5 inch bike a medium?

“Medium” is intuitive. “17.5” is not. Alpha sizing makes it easier for you to know what Trek mountain bike will work for you. A lot of other brands also use alpha sizing, and if you ride a medium in a different brand, you’ll probably ride a medium Trek as well.

Is it better to get a bigger or smaller bike frame?

Check your Ape Index If your arm span is longer than your height, go for a bigger frame. If it’s shorter, get the smaller one. On a bigger bike, the reach to the handlebars will be longer. If you have proportionally longer arms, you are likely to feel more comfortable on a bigger frame.

How do I know if my bike is too big?

If you struggle to make turns or need to sit up straight to reach the handlebars, the frame is likely too large. You may also notice that you cannot quickly turn or pick up speed easily due to the way that you sit in a larger frame. Pain or discomfort after riding also indicates that the frame is too big for your size.

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How do I determine bike frame size?

Adult bikes are measured by their frame size. Most manufacturers now measure the frame from the centre of the crank axle, to the top of the seat tube. Most road bikes are measured in centimetres (cm), whereas mountain bikes are generally measured using inches (in).

Is 18 inch frame large?

In very general terms, an 18-inch bicycle is best for someone just under six feet in height, but factors like inseam length and the differences between bike manufacturers can all influence the fit.

Is a 29 inch bike too big?

A 29er is often taller than a comparably sized 26-inch wheel mountain bike and may be too tall for smaller riders. If you are under 5’6” tall, a 26-inch mountain bike is still likely to be a better fit. If you’re 5’6′ or taller, you should be able to find a 29er model to fit you.

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