How much spacers is too much
The top of the steerer should exceed the height of the topmost clampbolt of the stem by 3-4mm. For carbon steerers, manufacturers reccomend not exceeding 40mm of spacers underneath the stem. If you cannot add spacers underneath the stem to effect the correct bar height, you have to get a stem with a steeper rise.Jan 20, 2007
Is 40mm of spacers too much
original question, ther is no mimimum or maximum rule when it comes to steerer tube spacers. 40mm isn't that much, it's only 4cm or 1.57 inches. On my commuter I've got it set up with 50mm of spacers to give a good upright riding position. It reduces stress on the back and neck muscles and offers better visibility.
How many headset spacers can you use
The first and easiest way to adjust handlebar height is by moving headset spacers. Headset spacers sit on the fork's steerer tube and help pre-load the headset bearings during adjustment. Generally, most bikes have 20 to 30mm of headset spacers that can be moved freely above or below the stem.
How many spacers can you put under stem
Generally, most bikes have 20 to 30mm of headset spacers that can be moved freely above or below the stem. All bolts in the stem are standard-threaded (i.e. 'lefty-loosey, and righty-tighty').
Why do you need stem spacers
Put simply, headset spacers enable you to easily adjust the height of your handlebars, which is an essential element of bike fit for BMX, MTB and road riders. In the particular case of the latter (road cycling), the correct bar height is key for comfort and performance.
How many spacers are under the stem
Generally, most bikes have 20 to 30mm of headset spacers that can be moved freely above or below the stem. All bolts in the stem are standard-threaded (i.e. 'lefty-loosey, and righty-tighty').
How many spacers should a headset have
Generally, most bikes have 20 to 30mm of headset spacers that can be moved freely above or below the stem.
Can you have too many headset spacers
In other words, it can have some negative handling implications too. Spacers above the stem are good for having the ability to to go higher with the stem if needed, but they can be more likely to snare ones scrotum (if one does indeed have a scrotum). While the probability of this happening is not high, it can happen.
Do I need spacers under my stem
There is no reason to have any problem due to no spacers under the stem. I rode two different bikes that way over four seasons. You see pictures of pro bikes setup that way all the time. It is wise, but not absolutely necessary to have a 2.5-5mm spacer on top of the stem.Dec 5, 2007
Do I need spacers below stem
the headset and stem dont have friction. the spin together. the headset spins in the frame. so there is no difference between spacers under the stem, or none at all.