18. How to Adjust Your Seat Height and Angle
Correct saddle adjustment is important to prevent knee injury and increase efficiency.
Proper adjustment of your seat height, angle and position is important in order to avoid injury and improve your cycling efficiency.
Adjust your seat height by loosening the pinch bolt where the seatpost slides into the frame. Twist the seat to raise or lower the post as needed and then tighten the bolt.
Now get on your bike and place the ball of your foot directly on top of the pedal spindle, when the crank is at the bottom of the rotation. Your leg should be just slightly bent. If your leg is too bent you will need to raise the seatpost, and if your leg is too straight you should lower the post. Another way to check this is place the heel of your foot over the pedal spindle. Your leg should be exactly straight in this position.
Seat angle and position are adjusted by loosening the seat clamp under the seat. These often have a lot of parts so be sure to only loosen the clamp enough to move the seat around.
Your seat angle should be horizontal, but you may want to play with the adjustment. Women often like to have the nose pointing just slightly downward, while men often feel more comfortable with the nose pointing slightly up.
You’ll notice that the seat has two rails that the clamp tightens on to. This allows the seat to slide forward and backward, which adjusts your body’s distance in relation to the bottom bracket. For proper positioning, place the ball of your foot on the pedal spindle with the crank arm pointing directly forward. If your seat is in the correct position your knee should be directly above your pedal spindle.
Now tighten your seat bolts and go for a test ride. You may have to play with these adjustments several times until you find the seat position that is most comfortable.
Hi, I ride with my seat as far back as possible - jammed against end of rails. My present seatpost has a 1" setback and to get my weight more balanced I need at least 1 1/2" to 2". I would appreciate any suggestions regarding possible brands. I am now through with racing so I like to keep my purchases to the lowest possible price, don't care if it's made in Taiwan !!!! I'm cheap too.... Read more >>
Hi, Quick question as I've never had this problem before. When I tighten the clamp enough to keep the seat post in place the clamp pops up off the frame, releasing the seat post - not ideal you might agree. Bike is brand new so stock size post/clamp. Clamp isn't quick release, seat post is an Ritchey alu one and frame is carbon. I'm thinking its probably the clamp that's the weak link here? I know you can get different clamps depending on whether seat post is alu or carbon - but does a carbon bike frame add further restrictions? Thanks.... Read more >>
Hi If anyone can help me with this problem that would be great. On my Mountain bike, the Seat Post Clamp or Seat Clamp that adjusts and holds your Seat Post in place has broken. I have a non quick release clamp and the screw that you tighten to adjust the height of the seat post has worn in the inside of it. Basically My Problem is that I don't know what I should do to get the clamp off the bike as I am happy to buy a new one but I don't know of the method I should use to take off the Seat Clamp. I tried Drilling the screw with different sized drill bits but it didn't work and a tried a tor... Read more >>
I am almost done restoring a cherry 1987 Miyata Trail Runner to be a short haul urban errand runner, brief stops at the store/pharmacy. But I worry about the quick release seat post clamp and the Brooks Gel Lite saddle as being easy marks for a thief. I can lock down the rest of the bike using u-locks, but the rest baffles me in terms of effectiveness, cost and usability. And I don't want to ugly the bike. I've thought about a bike chain inside rubber tubing, wrapping and padlocked somehow, but it's not clear to me that would work. Any engineers, etc., out there? Yes, I know there is no perf... Read more >>
Hi, there, I have a Hercules bike and when I tried to adjust the seat, 12 small iron balls fell out. I do not know how to put them back. Anyone can help? Thanks!... Read more >>
I have a Serfa saddle, relatively new for my bike, and took a tumble yesterday. The saddle somehow popped out of the metal frame and I can't figure out how to torque it back in. The rails have such little flex I can't seem to bend them at all, anyone have any suggestions. Any help would be appreciated... Read more >>
A bike I'm working on has a seat tube that is extremely tight for a post. I used a vice and ruined the previous post that was inside it. I plan on using a hone to smooth out the ID of the tube and slightly enlarge it. It'll be a challenge putting a bike frame to this machine. Does anyone have any alternatives to reworking the ID of a seat tube that are maybe hand fixes?... Read more >>
i cant make my bike seat stick to my bike. please help, this is the vid of my bike and ill explain the problem... Read more >>
Hey everyone! Its time to replace that old saddle on my bike, and as I've been looking around for new ones, I'm not exactly sure what I want. Some of those saddles are expensive too so I want to make sure I get one that will fit me good. Anybody have any tips on grabbing the right saddle? Thanks.... Read more >>
During my rides I find myself scooting back often into the comfort zone of my seat. Is my seat too far forward or backwards or what? Hight adjustment is good as my knees are only slightly bent at the bottom of my stroke while on the balls of my feet.... Read more >>
My carbon seatpost is "frozen" into my carbon frame. The height is OK and I haven't adjusted it in more than a year however I now need to remove the seatpost completely for air transport. I must remove the post. Leaving it in and trying to pack the whole thing in some other way is not an option for me. My LBS tells me there's nothing can be done. Any advice or ideas would be appreciated.... Read more >>
Hi from Kentucky. I bought a new bike and would like to put some hours on the road but the flat seat has a strange effect on me after some time. I'm guessing with a riders weight concentrated one area the blood flow is restricted. The springer seat is comfy but maybe I should look for one with a center "valley". I would wonder if female riders also experience this or just the guys. I figure it must be the male anatomy that makes this happen. Thanks......................Tom... Read more >>
I'm a starving student. I'm stuck in a foreign city for one semester. My savvy craigslist $20 purchase is a wee bit small. It's too short for my legs but the smaller frame is comfortable for my arms. I understand how much leg extension I need - how high can I extend the seatpost? If I extend it past the max height line, but keep the post inserted enough that it's a few mm past the ears, what can go wrong?... Read more >>
Other threads here deal with stuck seatposts, this is the opposite case. My weight (200 lbs. +) makes my legs get longer as i ride, so i came up with some maybe helpful suggestions... Tightening the frame bolt squeezes the 2 ears on the frame together so that they're no longer parallel. That limits how far the bolt will tighten. I tried a thinner q.r. bolt using those ball washer thingies from v-brake pads contacting the frame surfaces. This helps prevent the q.r. bolt from bending under load while toeing in for better contact. Also tried one or more alu. seatpost clamps directly on the seat... Read more >>