# How are Trek bikes measured?

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Trek frame size used to be measured by the length of the seat tube. But modern mountain bike geometry is based on reach, not seat tube length.

## How do I tell what size my Trek bike is?

Measure the distance from fingertip of one hand to fingertip of the other. This will give you your arm span. Subtract your height from this figure to get your Ape Index. If the result is positive (your arm span is greater than your height) you should go for the larger size of bike.

## How can you tell what size a bike is?

Look for a size label on the bottom of the seat tube first.

1. Keep in mind that the frame size may be listed in either inches or centimeters.
2. Common bike sizes range from 48 cm–62 cm. Bikes at the lower end of that size range are meant for shorter individuals, while taller people will need bikes sized 56 cm and up.
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## Are Trek bikes metric or standard?

The small stuff that doesnt need to conform to standards is all metric. The practical answer to your question is that all fasteners are metric threaded and require metric Allan keys or metric open end or socket wrenches. That applies to “American made” bikes (Trek, Cannondale, Litespeed, etc.) as well as all imports.

## What size is a 17.5 bike frame?

Bike Size Size (cm) Inseam (in)
45-47 (17.5-18.5″) X-Small <27″
48-50 (19-19.5″) Small 27-28″
51-53 (20-21″) Medium 28-30″
54-56 (21-22″) Large 30-32″

## What size bicycle is right for my height?

Rider height Suggested frame size
Feet/Inches Centimeters Centimeters
5`0″-5`3″ 152-160 cm 49-50 cm
5`3″-5`6″ 160-168 cm 51-52-53 cm
5`6″-5`9″ 168-175 cm 54-55 cm

## Is 26 inch bike good for what height?

There are bikes with 26- inch wheels, which are suitable for heights between 5’0″ and 5’5″.

## What height does a 24 inch bike fit?

Children’s Bike Sizing Chart

Rider Age or Height Suggested Size
5 – 7 years 3′ 4″ – 4′ 0″ 16″ wheel diameter
7 – 9 years 4′ 0″ – 4′ 5″ 20″ wheel diameter
9 – 11 years 4′ 5″ – 4′ 9″ 24″ wheel diameter
11+ years 4′ 9″+ 26″ wheel diameter

## What does a 26 inch bike mean?

Usually the size is written on the tire sidewall, for example it might read 26 x 2.2”, a typical mountain bike size. This indicates the wheel is 26” and the tire is 2.2” wide. Wheels are categorized in size by their primary use for road cycling, off road, touring and BMX. … Older road bikes might have 27″ wheels.

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## How do you determine what size bike to buy for a woman?

Women’s bike frames may be measured in inches or centimeters, or come in generic sizes (S, M, L).

Women’s Mountain Bike Size Chart.

Rider Height Frame Size (in Inches) Frame Sizes (S,M,L)
4’10”-5’2″ 13-14 XS
5’2″-5’6″ 15-16 S
5’6″-5’10” 17-18 M
5’10”-6’0″ 19-20 L

## Are bike Allen keys metric?

The bike industry is metric. For home use, a full set of metric allen wrenches is great. For bringing with you, there are a lot of multi-tools that will fit in your pocket and provide all the help you need on the road. Or, just enough to get home, or a bike shop.

## Are most bikes metric or standard?

On one bicycle, you will see both the metric and SAE system. Most threading is metric, but not all. Axles on most bikes will use a 9mm threading for the front axle, and 10mm for the rear axle. Bottom brackets are commonly 1.375 inch with thread pitch of 24 threads per inch.

## Are Schwinn bikes metric?

All though a smattering of Schwinns are Imperial, for some God-Forsaken reason. Everything post 1980 is metric. At the bike path the average amount of wheels on a bicycle is two. The average amount of wheels on a pair of inline skates is eight.

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

A larger frame will give you a larger wheelbase (the distance between your two wheels is greater). This will make your bike feel more like a monster truck than a precise scalpel fit for carving up the trail.

## How do I know if my bike is too big?

Besides stand over height, seat post height is usually where I look when sizing a new bike. I shoot for the post to be 3/4 of the way out of the frame, if your seat post is more than half way down then its probably too big.