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How to verify bicycle by frame serial number

5 min read

Asked by: Noah Prince

You can usually find the bike serial number on the under side of the bottom bracket. The “bottom bracket” is the part of the frame that the pedals go into. So all you have to do is turn your bike upside down and have a look… If it’s not there, don’t worry!

How do I identify my bicycle frame?

Most bicycles have a frame number stamped into the metal under the bottom bracket. If it’s a carbon frame, the number will be etched into the surface or displayed on a sticker. Occasionally, the frame number will be on the inside of the chain stay or on the down tube or top tube.

Is frame number same as serial number bike?

Yes, “serial number” and “frame number” are the same thing. The number on the sticker should match the number on your bike. Depending on the age of your bike, it will be in one of two places. Bikes built before mid-1999 will have the frame number stamped on the driveside dropout.

How can you tell a fake bike frame?

Counterfeit frames lack a serial number on the bottom of the frame or have a sequence starting with letters, like “GK.” Many fake Venge or Tarmac frames have the serial number WSBC604292544K.

How many digits are in a bike frame?

A bicycle serial number often referred to as a bike frame number, is a unique sequence of numbers typically between 6 and 10 digits long. Almost every bike manufacturer stamps a unique frame number onto the bikes they produce[1]. Occasionally before the serial number, there may be a couple of letters.

What is a frame model on a bike?

A frameset consists of the frame and fork of a bicycle and sometimes includes the headset and seat post. Frame builders will often produce the frame and fork together as a paired set.

How do I know the chassis number of my bike?

As mentioned above, the chassis number of a bike is part of the Vehicle Identification Number or VIN. Therefore, you can find the chassis number by locating the VIN number of the bike. It will usually be found on the bike’s handle or motor. If you are unable to locate it, you may wish to enlist the help of a mechanic.

Are bike frame numbers unique?

Frame numbers are exclusive identifiers of each bike. About 95% of bikes cruising Dutch roads have a unique frame number when manufactured – and so does yours. (Even if some bikes seem they don’t have any at the first glance, usually you can find the number somewhere well hidden, sometimes on even more than one spot).

What is frame no?

A vehicle identification number (VIN) (also called a chassis number or frame number) is a unique code, including a serial number, used by the automotive industry to identify individual motor vehicles, towed vehicles, motorcycles, scooters and mopeds, as defined by the International Organization for Standardization in

How does a serial number look like?

Despite the name, a serial number often contains letters and numbers. How many characters make up a serial number differs greatly, depending on the manufacturer, product, and model. Most serial numbers have at least six or seven characters, and some serial numbers have twenty or more.

How do I know if my Giant frame is real?

The only way for you to find out if it’s real or fake now, is to get the serial number of the bike and call and verify it with Giant. See if the seller will give you that.

Are all carbon bike frames made in China?

Almost all of the top western bike brands have their frame manufactured in China and Taiwan, including Trek, Specialized, Cannondale, even the “Italian-made” Colnago. There is also Giant, the biggest bike company in the world, a Taiwan company. So, carbon frames from good Chinese manufacturers are safe to ride.

How can you tell a fake Trek Madone?


Quote from video: And you can't uh change it because there are only ones that will suit your bike. And you have to buy it from the same manufacturer. But here you have the possibility to buy it from aliexpress.

What are the types of bike frames?

Generally speaking, there are four main options: aluminum, carbon fiber, titanium, and steel. Each has its pros and cons, but depending on your budget and intended use, we can help you find the right choice.

What is frame size of cycle?

Bike Frame Size Guide

Height (Centimetres & Feet) Inside Leg Road Bike Frame Size (CM)
170cm / 5′.7″ 79cm / 31″ 54cm (Medium)
175cm / 5′.9″ 83cm / 32.5″ 56cm (Large)
180cm / 5′.11″ 85cm / 33.5″ 57cm (X Large)
188cm / 6′.2″ 89cm / 35″ 60cm (XX Large)

Where is the frame number on a Trek bike?

You can find the bike serial number on the underside of the bicycle frame, near the bottom bracket. Look for a sticker containing a barcode. This sticker will also contain a string of letters and numbers, many beginning with WTU. This full string of characters is the bike serial number.

What is frame size on a bike?

The frame size is simply the length of the bike’s seat tube, measured from the center of the cranks to either the top of the tube (referred to as “center to top”), or to the point where the seat tube intersects with the top tube (referred to as “center to center”).

Where is the frame number on a Trek bike?

You can find the bike serial number on the underside of the bicycle frame, near the bottom bracket. Look for a sticker containing a barcode. This sticker will also contain a string of letters and numbers, many beginning with WTU. This full string of characters is the bike serial number.

What does a 20 inch bicycle mean?

So when we talk about kids bike sizes in terms of 14, 16, 20 or 24, those numbers indicate the diameter of the wheels on the bike in inches.

What size is a 20-inch frame on a bicycle?

What size bike do I need?

Height Bike Size Mountain Bike Size *
5’10” – 6’0” 178 – 183 cm L 19” (48cm)
6’0” – 6’3” 183 – 191 cm XL 20” (51 cm)
6’3” – 6’5” 191 – 196 cm XXL 21” (53 cm)
6’5” – 6’9” 196 – 205 cm XXXL 22” (56 cm)

Can adults ride 20-inch bikes?

Adults can definitely ride 20-inch BMX bikes, but it is recommended that they wear appropriate safety gear to keep themselves safe. This type of bike can be more difficult for adults than other types of bikes because the smaller wheels require a lot more balance and coordination in order to ride safely.