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Questions and answers about sports

Help identifying Freewheel lockring

5 min read

Asked by: Lisa Williams

What kind of freewheel do I have?

To identify which type you have on your bike you will need to start by removing the rear wheel from the bike. Then spin the cogs backwards by hand, if everything apart from the axle moves, then it is a cassette. If part of the block is stationary when the cogs move, then it is a freewheel.

How do I know which cassette I have?

Quote from video: How do you tell what size cassette you have you count the teeth. In the biggest and the smallest ring. So one two three four 27 28 so this is a 28.

How do you tell freewheel from freehub?

Quote from video: Like this and wash to see if the splines or notches rotate too when you do that if you do see the splines or notches moving like on this wheel then you have a free hub and cassette.

Are all freewheels the same size?

By far the most common size for freewheels on trials bikes is 18T and all the models we sell are available in this size – some come in 16T and 17T also. For a 20″ wheeled bike the standard gear ratio is 18T up front and 12T at the rear.

Are all freehub bodies interchangeable?

Almost always, the answer is no, there is no interchangeability between different brands – and often limited interchangeability within a brand.

What is a HG freehub?

HG, short for ‘HyperGlide’, is the most common and traditional freehub body design available. Created by Shimano, it is the standard used for cassettes that have at least an 11-tooth cog as the smallest cog on the cassette. HG Specific cassettes are available in 8,9,10, and 11speed options.

How do I know what cassette is compatible with my bike?

You can know what cassette to get for your bike by determining the teeth count on the largest sprocket and the smaller sprocket of your current cassette. For example, a size 12-25t cassette, which is standard to road bikes, has 12 teeth on the smallest cog and 25 teeth on the largest cog.

What do cassette numbers mean?

A cassette may therefore be sized as 11-32t. The first number refers to the number of teeth on the smallest sprocket (the highest gear, for fast pedalling at speed) and the second number to the biggest sprocket (the lowest gear, for climbing hills).

Does the number of teeth on a cassette matter?

The tooth count does not matter, but the cassette on the trainer may be in slightly different position in relation to the derailleur than the cassette on your wheel. This is true even if they were the exact same cassette.

What’s the difference between a freewheel and a freehub?

Freewheel vs Freehub – Thread Differences

One of the main difference is that freewheels typically have a threaded hub. Bikes equipped with cassettes do not have a threaded hub, but instead, slip onto the hub with splines. But the differences, without getting too technical — go deeper than that.

Does my bike have freewheel or freehub?

To determine if a sprocket is a freewheel or cassette system, remove the rear wheel from the bike. Find the tool fitting on the sprocket set. Spin the sprockets backwards. If the fittings spin with the cogs, it is a cassette system with a freehub.

Is freewheel and freehub the same thing?

The term “freewheel” refers to the whole gear cluster with the coasting mechanism inside. The freewheel is screwed onto a set of threads on the right-hand side of the wheel’s hub. On a freehub system, the coasting mechanism is a sub-assembly of the wheel’s hub.

How do I know my freehub size?

Quote from video: Very very carefully. Taking my ruler. And i can see that this one is 15 millimeters. So there we go that's how we measure the hub width. And through axle diameter.

Are all freewheels compatible?

All the current (since the year 1990) freewheel hubs are compatible with all the 6 and 7 speed freewheel sprockets. Freewheel rear hub with threads, and freewheel sprockets that are screwed onto it.

Can I use different freehub?

Not you can’t different hub manufacturer has different freehub mechanism,99% of them can’t be exchange,just small number of hubs they adopt the exact same of mechanism and same sizes as well.

Are 6 and 7 speed freewheels interchangeable?

If your bike currently has a regular-spaced 6-speed freewheel, you can generally upgrade to 7-speed with little trouble. Since the sprockets are closer together on a 7-speed freewheel, the overall width is only very slightly wider than a regular-spaced 6-speed.

Do all cassettes fit all hubs?

Most cassette hubs are compatible with Shimano cassette cogs. SRAM cassettes and most Miche, IRD and SunRace cassettes use the same inter-sprocket spacing as Shimano, but at least some SRAM 10-speed cassettes do not fit aluminum-body Dura-Ace hubs.

What is the difference between Freecoaster and cassette hubs?

Quote from video: The basic internals on a free coaster hub is your clutch. Which engages along a spiral thread mechanism. Where a cassette relies on a call and spring mechanism.

Can you replace a freewheel with a cassette?

In different, freewheel hubs have a threaded portion. The freewheel itself has threading on the inside and goes onto the hub like a nut. Consequently, it’s impossible to install a freewheel on a cassette hub because cassette hubs are not threaded.

How do I know what cassette to get for my bike?

Registered. The numerals indicate the number of teeth on the smallest and largest gears (cogs), so a 12-28 cassette has a 12-tooth small cog and a 28-tooth large cog. The smallest cog is your highest gear (high speeds) and the largest one is your lowest (lowest speeds).

Why are some Freehubs loud?

Loudness in the freehub/freebody is usually due to the very light oil used to lubricate the inner parts. Thicker oil can be used to lessen the noise and even grease in some cases, but it’s high viscosity is pointed at for not being so efficient.