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Slipping MTB saddle during rides..


bikekid
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Hi guys

 

Need some advice - did a race last weekend and today and on both occasions my saddle is coming loose during the ride. Prior to the race I have made sure the saddle was at the right position and angle and securely tightened.

 

I'll be missioning along and suddenly there will be a big crack from the thing and my saddle slips so the saddle is pitched back instead if slightly forward. I will re position and tighten the thing and the same thing will happen further along. This only occurs when I hit a sharp bump and put sudden pressure on the saddle.

 

I took the thing apart last weekend and I cannot see anything wrong with the whole set up. The "teeth" that maintains the pitch on the seat post and the other part so to speak look worn in some places but not badly IMO. I can take some pics if it will help.

 

Do you guys have any tips or do I need to get a new seatpost :( I was thinking of maybe putting some cloth in there between the seatpost and the other bit(with a hole in the middle for the bolt) to give the thing a bit more grip.

 

Thing is this only happens while out on the trail, on the stationary trainer the thing behaves itself. I should learn to keep my ar$e off the saddle for the bumpy bits but sometimes its just not possible...

 

Does this happen to other people? To be be completely honest having a badly positioned saddle is not fun - didn't enjoy the ride this week and last weekend.

 

Both me and my lower back thank you for any help and suggestions.

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let me guess ritchey single bolt carbon seatpost? or at least it happened to me, i ended up selling the seatpost and getting one with micro-adjust (nuke proof post) rather, and since have had no problems with my saddle changing tilt during a ride.

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i was gonna guess it worn threads on the bolts, or the bit into which the bolt threads could have worn threads. I dont suppose you checked those?

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Nah - it's a Giant connect seat post with a single bolt. Had a squizz at the bolt and the other bit the bolt screws into and the threads look fine <_<

 

My road bike has the same post so will have a squizz at that tomorrow and compare to what it should look like as its relatively new. Have a feeling I may have to just get a new post :/

 

Thanks

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Take out the bolt and grease it and tighten it, come back and tighten some more and before every ride make sure its tight.

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Those Giant Connect seat pillars are notorious for being crapola. Burn it and buy a double bolter. When I say double bolter I mean one bolt in front and the other behind not next to each other. Front-back design is best for getting the right angle and for staying stable.

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I bought myself a Momsen , double bolt (front back) set post. I chose this one as it was super light. After a few months of a sore ass I realized that the back seat post bolt was pushing up against the base of my saddle. I readjusted the saddle andstill same problem. The seat post would creak and groan and that meant I neededto tighten it. After the umpteenth tighten the whole for the allen key startedto strip, as did my patience.

A will back whilst riding I didnot pay attention to the creaking and to my detriment the seat post clamp gavein a spectacular fashion. I had to walk back up the trail and find the parts to my seat post. Thank goodness I found it all and could reassemble and carry on riding.

To solve this issue I bought a Richey rolleyes.gifALU double bolt seat (side by side), so far no issues with it. I will no longer worry about buying a weight weenie based seat post. Its the one area were you must not compromise.

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Thanks for the advice guys - appreciate it. I will post a pic of the whole set up tonight so you can see what I am talking about.The seat has been creaking for a while so maybe it was just a matter of when it would go. Was looking on CWC at seatposts so will get a double bolter soon. Will choose 2 and ask what you guys think of them. The Giant system does seem very crude...

 

Thanks again

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Those Giant Connect seat pillars are notorious for being crapola. Burn it and buy a double bolter. When I say double bolter I mean one bolt in front and the other behind not next to each other. Front-back design is best for getting the right angle and for staying stable.

 

Thanks - have started looking online at seatposts. My mate at work said I should maybe try superglue?? Do you think it will work?

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My mate at work said I should maybe try superglue?? Do you think it will work?

 

No.

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No.

 

Thanks, thought as much :/ No harm in asking. Will have to start shopping I guess. Thanks for the help guys - greatly appreciate it. Just need to decide if I get a double bolter with the 2 side by side or one behind the other as there are differing opionions on this thread :)

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Didn't realise there were so many diameters for seat posts - not a huge amount for 30.9mm

 

Found some on CWC - any thoughts?

 

Hope Eternity Seatpost - Bit pricey

http://www.cwcycles.co.za/product/hope-eternity-seatpost

 

Ritchey Comp V2 Seatpost - Looks like it has the same "teet" system as the Giant seatpost

http://www.cwcycles.co.za/product/ritchey-comp-v2-seatpost

 

Ritchey WCS Seatpost (Wet Black) 2 bolt

http://www.cwcycles.co.za/product/ritchey-wcs-seatpost-wet-black-2-bolt

 

Ritchey WCS Seatpost (Wet White)- can't tell what sort of clamp it is

http://www.cwcycles.co.za/product/ritchey-wcs-seatpost-wet-white

 

Thomson Elite Setback Seatpost

http://www.cwcycles.co.za/product/thomson-elite-setback-seatpost

 

 

I have a Fixik Tundra with Manganese rails - I assume it would fit the above?

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Those Giant Connect seat pillars are notorious for being crapola. Burn it and buy a double bolter. When I say double bolter I mean one bolt in front and the other behind not next to each other. Front-back design is best for getting the right angle and for staying stable.

 

I've got the single bolt one and happy with it but I would say if one of your rails is thinner than the other, then it will slip. I had that problem with my original Giant OEM and while the replacement Giant one reduced the movement, it still happened.

 

After I got a saddle with thicker rails, no more issues.

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I seriously beleive in Thompson's seatposts. I've also had Easton and Race Face and those too work well.

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Didn't realise there were so many diameters for seat posts - not a huge amount for 30.9mm

 

Found some on CWC - any thoughts?

 

Hope Eternity Seatpost - Bit pricey

http://www.cwcycles.co.za/product/hope-eternity-seatpost

 

Ritchey Comp V2 Seatpost - Looks like it has the same "teet" system as the Giant seatpost

http://www.cwcycles.co.za/product/ritchey-comp-v2-seatpost

 

Ritchey WCS Seatpost (Wet Black) 2 bolt

http://www.cwcycles.co.za/product/ritchey-wcs-seatpost-wet-black-2-bolt

 

Ritchey WCS Seatpost (Wet White)- can't tell what sort of clamp it is

http://www.cwcycles.co.za/product/ritchey-wcs-seatpost-wet-white

 

Thomson Elite Setback Seatpost

http://www.cwcycles.co.za/product/thomson-elite-setback-seatpost

 

 

I have a Fixik Tundra with Manganese rails - I assume it would fit the above?

 

Can't go wrong with Thomsom

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