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2
votes
5answers
151 views

How to remove a stuck seatpost?

I bought an old bike. However there is one problem with it. The seatpost is stuck and I can't take it up or down ... and it's too high for me that my back hurts. It seems that the old user made it ...
6
votes
6answers
8k views

Problems with a slipping seatpost

I got a Cannondale Quick1 2010, with the seatpost made with aluminium carbon-wrapped. The problem is that the seatpost tends to slide downwards, even if I squeeze a lot the snap ring; if the ground ...
4
votes
2answers
6k views

Adjusting saddle angle on a road bike (drop bars)

I'll preface this by saying that I've been a mountain biker for over a decade, including XC racing for a couple years. I've never had a hard time adjusting the saddle angle (tilt forward or back) on ...
1
vote
2answers
97 views

Giant Road Bicycle, Comfortable Seat

Anyone know of a comfortable seat that is compatible with Giant Bikes? I took my seatpost to walmart to try and fit the seatpost with the bell gel seatpost with shock absorbers, Had high hopes for ...
4
votes
1answer
105 views

How to judge comfort when buying a new saddle

I bought a motobecane mirage s recently from bikesdirect.com I took the following advice from a bikes forum: Plan on changing the seat, pedals, and possibly the tires. The seat will make your ...
0
votes
0answers
70 views

I have a few questions about frame repair, seat adjustments, and rims.

My bike is a Trek 1100 Aluminum Frame My bike has a few dings and scratched in the frame, and I want to get rid of them. So I was thinking I could get a powder coat or something ...
1
vote
1answer
75 views

Carbon-wrapped Aluminum seatpost?

I have the seatpost shown in the pictures below. It came on a 2010 Specialized Tricross. It looks like Carbon fibre on the outside, but when you look at the open end of the tubing, it actually looks ...
13
votes
5answers
15k views

What makes grease appropriate for bikes?

I'd like to grease my seatpost, and in front of me I've got a tube of "CMD Extreme Pressure Lube #3" that claims to be good for "ball bearings, roller bearings, deep drawing, rivet spinning" and a ...
2
votes
1answer
50 views

Peugeot rear brake location

I have a 1985 Peugeot P16 (mixte). The Weinmann 730 sidepull rear brake was located at the seatstay bridge. Q: Is it safe to relocate it to the gusset plate located behind the seat tube and attached ...
1
vote
2answers
238 views

How come my bike has such a short seat post?

The bike is a 1983 Dawes Galaxy and upon trying the raise the saddle this morning, I found this stubby little thing. Is this normal for bikes of this age? In either case, why so short?
-1
votes
2answers
109 views

Seat post tightening

I have a giant defy 3, I'm not sure how tight the seat post bolts should be? I don't have a torque Allen key. Is doing the two bolts on the ring that goes around the frame as tight as I can do them ...
6
votes
1answer
1k views

Trading out folding bike seat post

I currently have an older Dahon Mariner with a Telescope seat post. The third wheel that functions as the "third leg" (when the bike is folded) has broken off. To compensate, could I switch out the ...
1
vote
2answers
271 views

DIY: what material to use as DIY shim seat post?

Seat tube shim adapters are quite expensive, what kind of material do you recommend as a shim? I have seen in a thread some guys talking about home made shim: paper tape alloy drink can as a shim ...
0
votes
1answer
109 views

Does a carbon frame need two-bolt seat clamp?

Does a bike with an alloy seat post and a carbon frame need a seat post clamp with two bolts? Most clamps these days seem to be either quick release or single bolt. Is that safe to use with my set up? ...
3
votes
4answers
4k views

Aluminum seatpost stuck to a steel frame

I'm trying to free my aluminum seatpost corroded to a CrMo frame. One of the methods is to heat the aluminum seatpost and then to let it cool. In theory, the aluminum will expand twice as fast as ...
13
votes
5answers
10k views

How do I keep my seat from tilting back?

When I first got this bike, I got the saddle adjusted almost perfectly. Recently it slipped back (so that the nose sticks up). I loosened the bolt under the saddle, tilted the saddle back into the ...
0
votes
2answers
82 views

How to work around a high seatpost?

So I bought this old bike but realized that its seatpost is stuck and high. When I ride I feel uncomfortable because it's slightly too high for me. Also I realized that it's really difficult to fix ...
9
votes
2answers
8k views

Benefits and drawbacks of Dropper posts?

From what I've seen, the last couple of years saw a new product type come into light, and since its inception it has started to appear on bikes (such as this one, this one, or this one) as a stock ...
0
votes
0answers
70 views

How does the seatpost binder bolt work on a Vanmoof?

Vanmoof bicycles have the seatpost binder bolt/mechanism that is hidden inside the top tube. Does anyone know how it works? Does it have a way of preventing water from getting into the frame from ...
2
votes
1answer
155 views

What does this rod inside the my american classic seat post do?

I've got an american classic seatpost. I bought it used, and wasn't sure how to properly adjust it initially. I found the bolt on the bottom clamps the seat down. The bolt on the rear underside ...
4
votes
3answers
144 views

Are flip saddle posts available

When trying out the baby seat on my wife's e-bike, it was really easy to fit and remove because her saddle flips up to access the battery. It's a real pain threading the baby seat over the top of my ...
0
votes
1answer
48 views

I am hauling my bike a couple of thousand miles [closed]

Without the seat and post in. Any suggestions what to plug the tube with?
7
votes
3answers
1k views

Does anyone make a split seat clamp?

I built an 'Urban Mountain Bike' and I sometimes like to take it off drops. Accordingly, I cut the 'nub' that sticks up above the top tube so that the seat can be removed without a scary open pipe ...
3
votes
3answers
160 views

Suspension seat post is loose

Is it ok that a suspension seat post like the one shown below (source: cyclande.com) is actually a bit loose (moves a bit left-right and probably also up-down). The vendor told that for such seats ...
0
votes
1answer
114 views

Will slightly slimmer seatpost make a difference?

I have an old Peugout bike that needs a 23.8 (to the best of my measuring abilities) seat post. I can't find such a seatpost in all the obvious shopping places, but I did find a 23.4mm one. I'm just ...
0
votes
2answers
176 views

Seatpost Overextension

I've been riding with my very short seat post extended well past its maximum extension line for quite a while now. Looking at the seat post itself I don't see any signs of deformation or damage other ...
0
votes
1answer
221 views

Help me buy a bike seat post

I know that my bike has a 25.4 mm diameter seat post. So can I purchase any old 25.4 mm diameter seat post from eBay and expect it work with my existing bike seat? Here are some pictures of my ...
3
votes
4answers
5k views

Getting the right cockpit position. Sliding forward. What should I adjust to keep my sit bones on the seat?

I am experienced rider and I'm looking for some advice on how to adjust my cockpit position. I am a daily commuter, and do regular 40-50k rides on the weekends, and with the warmer weather will work ...
1
vote
2answers
246 views

Will bending the seat post two inches forward cause any unforeseen structural issues?

My current bicycle is a 2013 Specialized Allez C2. I'm thinking of using a conduit bender to bend the angle of the seat post two inches forward. A conduit bender can bend one inch for every 3 inches ...
3
votes
1answer
367 views

Seatpost of a folding bike is always dirty, filed down by frame?

I fold and unfold my Dahon Speed D7 at least four times a day, and each time its seatpost is being pulled up or pushed down the frame tube. Problem is that the seatpost becomes dirty really quickly ...
7
votes
4answers
2k views

How do I remove rust from my seat tube?

I just pulled my seat out as the first step of breaking my bike down for winter storage, and found that rust has formed between my seat tube and my seat post. The rust starts maybe 3" down the tube ...
13
votes
9answers
6k views

Removing Seat Post rusted into downtube

I have an old steel frame (Columbus Number 2 I think) that has the seat post (Suntour Superbe Pro - see, I said it was old!) rusted in. I have tried lots of WD-40 but it will not budge. Any tips on ...
2
votes
4answers
4k views

How to remove completely stuck saddle post from frame [duplicate]

I am helping a friend fix his bike that he got for free. Everything went well, except that I cant raise the saddle. The seatpost is really stuck in the frame. The clamp was easily removed. When I ...
2
votes
3answers
2k views

Child seat (or rack) at the seat post

I have 2 bikes (mountain and road) sometimes I use them in races (mostly MTB) so I don't want to have any fixed accessory on them. I'm looking for a child seat (or rack where a seat can be mounted) ...
0
votes
1answer
103 views

Quick-release seat slipping down [duplicate]

My bike's quick release seat has been slipping down recently. I noticed when my (pro) biker friend remarked how low down the seat on my bike was, and helpfully readjusted it for me. Biking became ...
2
votes
1answer
2k views

How to pull a carbon seatpost out of a carbon frame?

How do I pull out a carbon seatpost on a carbon frame? It seems so hard for me... Do I need a special tool, or just ask help from a local bike shop? done with the seatpost. I made the frame and ...
2
votes
2answers
533 views

Bicycle Seating Posture Ergonomics

Road bikes have a forward bent seating posture, mountain bikes have a straight seating posture. I was wondering which of the above seating postures (of road bikes or mountain bike) is better for ...
1
vote
1answer
301 views

Problem during installation of Rockshox Reverb Stealth product

I am following the SRAM official procedure on a very similar bike to the one reviewed. However, I am stuck at this part: unthread the hose from the remote's barb. I just can't. I am holding the hose ...
3
votes
2answers
2k views

Tight Seatpost Installation

I'm having a bit of a problem installing my seatpost. I have a 31.6mm carbon-wrapped aluminum seatpost which fit perfectly fine in my previous aluminum frame. Unfortunately, that frame cracked, ...
2
votes
1answer
364 views

How can I mount a 25.4 mm seat-post on a frame that needs a 27.2 mm seat-post

My bike has no rear suspension. So I thought of putting a suspension seat-post on it. Unfortunately the only suspension post available in my city is a 25.4 mm one. I have added some scrap metal to fix ...
2
votes
1answer
456 views

Riding bicycle without using seat

I've almost always rode on a BMX, so I've never been sitting while riding because of how low the seat is.Now I've had a chance to try out a more normal bike but I found sitting on the seat to be very ...
11
votes
3answers
917 views

Why do some triathlon seatposts go straight up and down instead of at an angle?

Why is it that some triathlon bikes have a seat post that adjusts straight up and down instead of the more standard axis that aims at the bottom bracket? This means that if you raise (or lower) the ...
2
votes
2answers
697 views

Removing old fashioned saddle from seatpost

I've been searching for instructions on how to remove my old saddle from my seatpost. All the videos/guides I've seen have been about the newer kind of clamping mechanism where just one bolt needs to ...
0
votes
1answer
59 views

Dropper seat post with 150 mm of travel

Are there dropper seat posts with 150 mm of travel on the market other than Rock Shox Reverb Stealth and Kind Shock (LEV & Supernatural)?
5
votes
2answers
5k views

Is it possible to compensate a short sized frame by adjusting seatpost and stem?

Could you achieve the same position you would have on a bigger frame by raising seatpost and stem? And how could I adjust those to "simulate" a bigger sized frame?
4
votes
1answer
660 views

Can i stop my frame scratching my seatpost?

I have an On-One Scandal aluminium frame, into which i have put a carbon seatpost. I have been adjusting it to find the right height, and i have noticed that it is getting seriously scratched - see a ...
2
votes
2answers
388 views

Remote drop seatpost cable route

What are some options for a seatpost remote cables on frames without a pre designed route? I'm considering a dropper post but would only do this if I was able to mount a remote as I like the ...
3
votes
3answers
4k views

How can I use a bent seatpost to move my cruiser's seat farther back?

I realize this isn't everyone's taste, but indulge me for a moment... I just bought a beater cruiser bike on craigslist, and I'm trying to move the seat farther towards the rear of the bike for a ...
4
votes
2answers
117 views

Daily Adjusted Seatpost for Trainer Bike

I just got Nashbar's Ascent Fluid trainer and put an old big-box store bike on it that nobody was using, so now I've got kind of a permanent trainer bike which is nice. The problem: me and my partner ...
2
votes
2answers
794 views

Folding Bike Seat Post Replacement

I have a folding bike (basically this Origin8 model) and the seat/seat post got stolen. I haven't replaced a seat post before, but this is the only replacement post I could find, and I'm not sure ...