Yes there is a minimum length of seat post that needs to be in the frame. There should be a line on the post marked as minimum. Not worth the risk of messing up the jewels for a couple of grams.
Should I cut my seat post?
Cutting the post down is the proper way to do it really. Seat posts need to have a minimum amount of tube in the frame for safety though, so do some measuring and just cut off as little as you can get away with and file down any rough or sharp edges.
Can you shorten a suspension seatpost?
If the post cannot be slid all the way into the frame due to an obstruction it can be cut down to shorten it. As long as the minumum length is inserted into the frame you will be structurally safe. You can buy a shorter post of course.
How long of a seatpost do I need?
The CPSC rule in the US is that the seatpost must be inserted two diameters of the seatpost into the frame. If it’s a 27.2 mm seatpost, it must extend 54.4 mm into the frame, which is 2 1/8″.
Can I cut my carbon seat post?
The seatpost needs to extend past the bottom of the toptube. Other than that, you’ll be fine. Some cf seatposts have a clamping area. If you cut off the clamping area, you can’t safely clamp it anymore.
Is it OK to cut a bike seatpost?
Condensed answer: A bicycle seat post can be cut as long as the new size respects the minimum insertion length of the seat post. Ignoring the minimum insertion length and cutting too much of the seat post will result in extra stress on the frame (seat tube) and may cause a crack.
How can I make my bike shorter?
On a bike that’s too big you can lower the bars a fair amount by making sure the stem is at the lowest point on the steerer tube without any spacers underneath. If your bars are already at this point, the next way to lower the bars is to get a stem with a high angle such as 15 or so degrees.
What diameter seatpost do I need?
To find out the diameter of your seatpost, you must remove the seatpost from the bicycle frame and look for the size, which is stamped just below the “Minimum Insert” line toward the bottom. The number will be a three-digit number (such as 26.8 or 27.2 or 31.6).
How do you cut cervelo seatpost?
With a grease pencil, mark a point 1cm from the cut end on the trailing edge of the seatpost. Placing the blade of your saw on the grease pencil mark, very carefully proceed to cut straight down resulting in a 45 degree chamfer being cut onto the trailing edge of the seatpost.
Why won’t my bike seat go down?
There are two possible reasons: The seatpost may be stuck mechanically, for instance by being the wrong size and having been forced in; or, the problem may be chemical, caused by corrosion. If an oversized seatpost was forced into the frame, it will often make a noticeable bulge in the seat tube.
Is my seatpost too high?
Signs your saddle height may be wrong
Knee pain is one of the most common indicators of an incorrect saddle height.A rider whose saddle is too high usually rocks as they pedal too, and the excessive movement required to reach the bottom of each pedal stroke as your hips roll can also cause pain.
Does length of seatpost matter?
Seatpost length is a further consideration. While a longer post is generally regarded as offering more comfort, the amount of post ‘sticking out’ of the frame will largely be dependent on your frame size/geometry and your own dimensions (inside leg length etc).
What is setback on a seatpost?
Straight and Setback Seatposts
A setback post puts you further behind your crankset and a straight seatpost moves you closer. The amount of setback or offset is best determined through a basic bike fit at a participating bike shop.
What is the longest seatpost?
long seatpost 27.2mm who makes the longest – Singletrack Magazine.
Are seatposts important?
The seatpost is a tube that connects the frame of the bicycle to the saddle, where the rider sits. Seatposts are useful because they allow for adjustability. In this way, the same frame can accommodate riders of different sizes or can be adjusted for different riding styles or terrain types.
Can you cut a Thomson seatpost?
No problem to cut it down to 250mm. I have weight the thomson masterpiece you mention at 192g w/o cut. Just do it! The one on my mountain bike was 350, I cut it to 240, no problems at all.
How do you tell if a bike is too tall?
Ideally, you should be able to stand with your feet flat while straddling the top tube with the bike between your legs. If you struggle to make turns or need to sit up straight to reach the handlebars, the frame is likely too large.
What happens if bike frame is too small?
You’re likely to notice if a bike frame is too small after you get back from your ride. A smaller bike forces you into a forward position. You may find yourself leaning forward and standing more frequently, which places more weight on your arms. They’ll feel it.
How do you know if your bike is too long?
“If your arms are dead straight, this indicates the reach is too long and you may end up with neck pain as the shoulders and neck take the brunt of road buzz and bumps. “Your shoulder or arm flexion in relation to your torso should also be around 90 degrees.”
Is a 56cm bike medium or large?
What’s the right road bike size for me?
| Rider Height | Suggested Road Bike Size | |
|---|---|---|
| Feet & Inches | Centimetres | Frame Size (cm) |
| 5’6″ – 5’9″ | 168cm – 175cm | Medium (54cm – 55cm) |
| 5’9″ – 6’0″ | 175cm – 183cm | Large (56cm – 58cm) |
| 6’0″ – 6’3″ | 183cm – 191cm | X-Large (58cm – 60cm) |
Can I put a longer seat post on my bike?
You can adjust the seat post by making it higher (may require a longer seat post than you currently have). Also, some seat posts are straight, whereas others have a setback. The later will move the seat slightly further back on the bicycle.
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