RocknRolla Posted December 9, 2015 Posted December 9, 2015 what is the difference etween the ID of the post tube, and OD of the post?
Rocket-Boy Posted December 9, 2015 Author Posted December 9, 2015 what is the difference etween the ID of the post tube, and OD of the post?Will get the callipers on it to check this evening, doesnt seem like a visible gap but Im guessing 1mm at most.
Jewbacca Posted December 9, 2015 Posted December 9, 2015 Best and easiest solution is to buy a set of seat post bottle mount clamps. Set the seatpost at the right height, tighten the seatpost clamp and then tighten one of the bottle clamps flush with the top of the seatpost clamp. My NINER sir 9 had the slipping issue and I have used this method without fail for a few years now.
Dirkitech Posted December 9, 2015 Posted December 9, 2015 Use some insulation tape around the seat postdont even bother - this is a recipe for a sticky slipping seatpost. My alu seatpost was slipping in my carbon frame. After trying a boatload of different ideas to keep it in place, the only one that is working so far (for the past year) is cleaning and tightening the seatpost to the point that it feels like it might snap and rip your hand off, but wont.
Dirkitech Posted December 9, 2015 Posted December 9, 2015 you can also join the hub's biggest loser comp over the next few weeks alternatively this might work (its worked well for me on my old frame) http://www.bike24.com/i/p/8/1/32618_00_c.jpgweighing a few kg's less doesn't remove the slipping seatpost variable, it just lessens the weight applied to the slipping seatpost
mtbride Posted December 9, 2015 Posted December 9, 2015 My Anthem's post (Giant Contact or whatever) used to slip as well, until I bought a Torque Wrench and was confident in tightening it to the spec max (8nm?). Now all is well and it does not move at all anymore, even when I apply a light coating of grease to the post before inserting again. The max is more than I was willing to do by hand. btw the Anthem ships with an allen key type collar
Rocket-Boy Posted December 9, 2015 Author Posted December 9, 2015 Flippen heck, its like Captain Myles suggested a few posts back.Got the callipers on it and its a 30.4 seatpost where it should be 30.9 so either titans QC is shocking of they use very weird non-standard sizing.So the clamp area is flexing inwards and making contact with a very small area of the post. Now do I shim it with a coke can or just get over myself and buy a new post...
Captain Fastbastard Mayhem Posted December 9, 2015 Posted December 9, 2015 Flippen heck, its like Captain Myles suggested a few posts back.Got the callipers on it and its a 30.4 seatpost where it should be 30.9 so either titans QC is shocking of they use very weird non-standard sizing.So the clamp area is flexing inwards and making contact with a very small area of the post. Now do I shim it with a coke can or just get over myself and buy a new post...Get a Ryder seatpost. Cheap cheap and good quality. And no, there is a standard of 30.4. It's relatively unknown, but used in some budget bikes, for some reason. I found that out the hard way, having to saw a post out of a frame when I inserted a 30.9 into a 30.4 hole and it stuck fast.
Dubbin Posted December 9, 2015 Posted December 9, 2015 Don't shim. Buy new post and put it behind you. And yes, it is human to try and overcomplicate a problem when the solution is right in front of you. I do it all the time
Rocket-Boy Posted December 9, 2015 Author Posted December 9, 2015 Don't shim. Buy new post and put it behind you. And yes, it is human to try and overcomplicate a problem when the solution is right in front of you. I do it all the timeYou are right, Im a fan of shiny things, I just dont normally classify seatposts shiny Will find something decent, Im not a fan of buying too cheap.
Captain Fastbastard Mayhem Posted December 9, 2015 Posted December 9, 2015 You are right, Im a fan of shiny things, I just dont normally classify seatposts shiny Will find something decent, Im not a fan of buying too cheap.Cheap DNE nasty, in the case of Ryder & Rapide...
Rocket-Boy Posted December 9, 2015 Author Posted December 9, 2015 Cheap DNE nasty, in the case of Ryder & Rapide... Captain Myles you are a champ, I had completely forgotten about Rapide, wider bar and new seatpost will be ordered before the night is up.
Trance Dance Posted December 9, 2015 Posted December 9, 2015 I struggled with my first trance with my seat post dropping until I broke the quick release as I tightened it too much. Replaced that with a *** kcnc quick release which at least kept the seat post up. On my new trance I wised up and lubed the quick release, life changing! Not much help in your case though...
Eddy Gordo Posted December 9, 2015 Posted December 9, 2015 Flippen heck, its like Captain Myles suggested a few posts back.Got the callipers on it and its a 30.4 seatpost where it should be 30.9 so either titans QC is shocking of they use very weird non-standard sizing.So the clamp area is flexing inwards and making contact with a very small area of the post. Now do I shim it with a coke can or just get over myself and buy a new post...Dman thats a huge difference
intern Posted December 10, 2015 Posted December 10, 2015 Get a Ryder seatpost. Cheap cheap and good quality. And no, there is a standard of 30.4. It's relatively unknown, but used in some budget bikes, for some reason. I found that out the hard way, having to saw a post out of a frame when I inserted a 30.9 into a 30.4 hole and it stuck fast. Reminds me of when I was a lightie. Man I had a lot of parts stuck together and bugger all proper tools to separate them. Many a frustrating day, I tell you.
Dirkitech Posted December 10, 2015 Posted December 10, 2015 Reminds me of when I was a lightie. Man I had a lot of parts stuck together and bugger all proper tools to separate them. Many a frustrating day, I tell you.lightie? cant tell if thats an innuendo for being lightweight or grammar mistake
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