Readers ask: How To Size Front Mountain Bike Shocks?

What size fork do I need MTB?

The main thing you need to look for is the steerer size. Most Mtb headtube is 1.1/8″, a few are 1.5″ or the combo of the two, tapered steerer. So as long as the fork is 1.1/8″ you are good to go.

What size of bike fork do I need?

When sizing a fork to a frame, the diameter of the fork steerer or steer tube (1″ or 1⅛” or 1½”) must not be larger than that of the frame, and the length of the steerer tube should be greater than but approximately equal to the head tube length plus the stack height of the headset.

Can I put a longer shock on my bike?

If you buy a shock that is too long for your bike, it will work well, but it can also damage it. The shock may be too long if your rear tire has moved at all after you installed it. Parts of the frame of your bike may also touch that aren’t supposed to, causing unnecessary damage.

Can you put a 27.5 fork on a 26 frame?

It’s possible to install a 26-inch wheel on a 27.5-inch fork. The process is much easier if the bike has disc brakes. The smaller wheels will lower the bottom bracket by about 0.5in.

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Can I put bigger forks on my bike?

In general, bikes will happily accept forks that are up to 20mm larger than their designers intended. Feel free to go beyond that if you must, but be prepared for a bike that the manufacturer didn’t really intend to create. That doesn’t mean it will suck, but it’s just something to be aware of.

What is a fork offset?

Fork offset is the distance between the front axle and the steering axis of the fork. Its purpose is to adjust the amount of ‘trail’ in the steering geometry. For 29″ bikes, the 51mm offset fork has been the standard for nearly a decade.

How do I know what size steerer tube I need?

Measure your fork steerer tube You need to measure it in two places. The outside diameter (OD) of the top section (where the stem clamps around, as in the above pic) and the outside diameter of the very bottom bit where the steerer goes into the fork crown (where the headset crown race sits, as in the pic below).

What is the crown on a bike fork?

Crown: The brace that holds a fork’s stanchions in place. Single crown forks are found on most mountain bikes. Dual-crown forks, which are stiffer and more suited to longer-travel bikes, are mostly found on downhill bikes.

Are coil shocks better for heavy riders?

If you are riding ‘Enduro’ or DH trails then a coil shock is definitely worth considering, especially if you are a heavy rider and like to hit big jumps and gnarly rock gardens.

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How do you measure shock size on a mountain bike?

The most accurate method for shock measurement:

  1. Measure the eye to eye length.
  2. Attach a shock pump and slowly remove all the air from the shock.
  3. Compress the shock fully and measure the eye to eye length again.
  4. Subtract this measurement from the initial eye to eye length to find the usable stroke. (ie. 185 – 132.5 = 52.5)

Do I need a piggyback shock?

Boobar suggests that riders consider upgrading to a piggyback-style shock if they: do shuttle runs or use chairlifts more than three times a year; don’t bother to switch the shock to Pedal or Lock; or if racing to the top of the hill isn’t at all your thing.

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