what are bike tube sizes?
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Sizes such as 26, 24, 20, 27.5, 29 and 700c are common tire diameters. The second number (after the X) is the width of your tire. The range for widths is usually between 1 and 3 inches. For example, a 26 x 1.75 size means the tire diameter is 26 inches and the tire width is 1.75 inches.
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Finally Pegs can come in a variety of Length's, usually measured in inches. Most being between 4" and 4.75" in length. The only other thing to look out for is what Axle Size pegs you'll need. BMX axles come in 10mm (3/8") and 14mm so likewise pegs can come in these sizes too.
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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. ... MTB bars are usually 25.4mm (standard) or 31.8mm OS (oversize) in diameter, with the latter standard now actually the most common owing to its properties of strength and stiffness.
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Most being between 4" and 4.75" in length. The only other thing to look out for is what Axle Size pegs you'll need. BMX axles come in 10mm (3/8") and 14mm so likewise pegs can come in these sizes too. However most Pegs today are supplied in 14mm with 10mm adapters, to save manufacturing two different sizes.
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For bikes that are small, medium, large/extra large, we'd consider the following handlebar widths as 'wide', respectively: 650-680mm, 680-730mm, 730-750mm. Anything larger than 750mm is probably influenced by discipline – downhill or gravity, for example – and personal preference.
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BMX Bikes come in multiple wheel sizes, ranging from 12” to 24”, with 20” being the most popular. ... Most BMX Bikes with 12” – 18” wheels, and 24” cruisers have relevant TT lengths to their size wheel.
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Generally, bike tire sizes are indicated with two numbers that correspond roughly to the outside diameter of the tire and the width of the tire. These would usually be measured in inches (26", 27", etc.) or millimeters (650, 700, etc.).
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['22" Tire Diameter. 175/50R16 = 22.9x6.9R16. 195/40R16 = 22.1x7.7R16. ... ', '23" Tire Diameter. 185/50R16 = 23.3X7.3R16. ... ', '24" Tire Diameter. 205/50R16 = 24.1x8.1R16. ... ', '25" Tire Diameter. 245/50R16 = 25.6x9.6R16. ... ', '26" Tire Diameter. 255/50R16 = 26x10R16. ... ', '27" Tire Diameter. 295/50R16 = 27.6x11.6R16.']
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On road bikes, it's always 68mm. With mountain bikes, 68mm is most common too, but sometimes the wider version with 73mm width can be found. The diameter of the bottom bracket is 41.96mm, and the bottom bracket bearings are always pressed into the frame separately.
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To find out the size of bottom bracket needed, measure the inside of the bottom bracket shell in your frame, it will be 73mm, 70mm or 68mm. Some older frames may have Italian threaded bottom brackets, instead of the more modern English.
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Bike hubs at a glance: Rear hub width varies widely, but the most common sizes are 130mm for road and 135mm for MTB. There are two main hub types, front and rear.
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There are two major pedal standards depending on spindle mounting thread diameter. One is 1/2″ wide spindle, popularly referred to as BMX – present on BMX, kids bicycles and very seldom on some cheaper grown up models. The other is standard MTB and road bike pedal, with 9/16″ thick spindle.
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Road bike tyres are run at a higher pressure than mountain bike tyres, to reduce rolling resistance and the chance of 'pinch flat' punctures. Suggested tyre pressure for road bike tyres (25mm) - for a ≤70Kg rider: Inner tube tyre: 90PSI (6.2Bar) Front / 93PSI (6.4Bar) Rear.
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When it comes to pedal sizes, there are two sizes: ½” and 9/16”. ½” pedals are only used on very basic bikes with a one piece crank.
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700C is used to refer to any tire, rim, or wheel with a 622mm BSD, but it could be on a skinny-tired road bike where the wheel has an actual diameter of only 660mm (which is actually a little LESS than 26 inches!), or a mountain bike with a wheel diameter of over 29 inches.
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However, it's not a matter of bigger is better so let us explain: BMX Bikes come in multiple wheel sizes, ranging from 12” to 24”, with 20” being the most popular. 20” Wheels are the most common and are the true size for BMX.
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There are three types of bicycle innertube valve: Schrader, Presta, and Woods. Tubeless valves come in two types: Schrader and Presta. Found on all motor vehicles as well as bikes with wider tyres, the Schrader valve is user-friendly.