Frequent question: How do you measure forks on a motorcycle?

Fork length is measured from the base of the frame neck to the center point of the axle mounting hole. For any off-the-shelf motorcycle this standard measurement for the front forks is considered stock length.

How do I know what size forks to buy?

If you have 27.5/650B or 29in wheels then you need the corresponding size fork. Tip: if you have 26in wheels you can use 26in size forks (obviously) but you can also get away with running a 27.5/650B fork without messing up your bike’s handling significantly.

How do you measure front suspension?

Measure and record the distance between the shock mounts. Raise the wheel to ~4” above ride height (measured vertically), record the exact compression. Measure and record the distance between the shock mounts. The amount the shock moved between droop and bump divided by the amount you moved the wheel is your motion …

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.

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Can I put a 29er fork on a 26 bike?

It would work, but there would be no benefit to it at all. It would probably just mess up the bikes geometry and add weight. You would only get more travel if the fork you put on has more travel than the one its replacing.

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).

Are all steerer tubes the same size?

The standard sizes are 1 inch, 1 1/8 inch, 1.25 inch and 1.5 inch steerers. You may occasionally come across a 1-inch threadless steerer, but you’re more likely to find a threaded steerer in this size.

How do you calculate suspension travel?

The distance traveled from bump to droop as measured at the hub will be your suspension travel. Rear – With leaves, jack your truck up so the tires are off the ground, measure from the top of the axle tube to the frame. That is the amount of possible travel you have.

How do I determine my wheel travel?

Mount the bike on a bike stand(if you have one), remove the shock, cycle the rear arm and measure. Presto, there’s your travel.

What is travel suspension?

Travel. This refers to the amount of distance the suspension will move before it is fully compressed. Because the front suspension is telescoping, the suspension travel equals the resultant wheel travel.

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Can you change fork oil without removing forks?

Begin by loosening the upper triple-clamp pinch bolts and breaking the fork caps loose while the fork is still held by the lower triple clamp. You will need to remove the caps to refill the fork tubes with oil. … If they do, you are in luck and will be able to change the oil without removing the fork legs.

How do I lower my front forks?

Notice that on most bikes, as they come from the factory, the fork tubes stick out through the top slightly. Loosening the pinch bolts on both upper and lower triple clamps allows you to slide the fork tubes up (or the triple clamps down, it’s all relative), which effectively lowers the front-end of your motorcycle.

How do you adjust the front forks on a motorcycle?

Set sag on front forks

To measure this, put the bike in a chock or have a mate hold it steady. Use a cable-tie, compress the forks, let them settle and push the cable tie up to the outer dust seal. Get off, and take the weight off the front so the forks are fully extended. The sag is the distance it’s travelled.

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