Sven137 Posted April 23, 2017 Posted April 23, 2017 HI this is the 2nd time its happened.. when i went through a dip and the bike was at the bottom i heard a loud crack and the rear shock bolt snapped at at the bottom of the shock I weight 90kg and am on a 29" Yeti Are there diffrent thicknesses of bolts for the rear ? or am i riding wrong as i want going that wast and the dip was small .. it was at the Enchanted Forest at NF
Phatman Posted April 23, 2017 Posted April 23, 2017 Check that your shock is working properly and fully unlocked, and that all your pivot points are pivoting properly.
Vetseun Posted April 23, 2017 Posted April 23, 2017 Your shock could be bottoming out.Somewhere sommit aint workin right.I would seriously consider a visit to a good lbs.Good luck
Sven137 Posted April 23, 2017 Author Posted April 23, 2017 Check your shocks air pressure. The shock air pressure was about 12 13 bar Bar as i followed a youtube tutorial of only allowing 25% travel on the rear shock when sitting and adjusted the pressure accordingly which was 13 bar
MrJacques Posted April 23, 2017 Posted April 23, 2017 Titanium bolts could be an option, but check the other things like pivots, shock pressure (according to sag, not pressure), etc. first. With the shock loose you should be able to check that the suspension cycles easily.
BaGearA Posted April 23, 2017 Posted April 23, 2017 Buy a few of the screws that are currently used for the mount bolt and see if you can find A blacksmith that can harden them up even more considering its a yeti I wouldn't but it can work. But I think something else is at fault causing much more stress on the bolt
(Deon) Posted April 23, 2017 Posted April 23, 2017 Are you the first owner?Who replaced the first bolt and with what?How old is the bike?
Sven137 Posted April 24, 2017 Author Posted April 24, 2017 Are you the first owner?Who replaced the first bolt and with what?How old is the bike? The Bike was built for me... Yeti Frame, Cannondale front fork...; the bolt was replaced at LBS in Northgate Bike about a year old now Is the bolt braking on the same spot? Yes.. same bolt same place
Goodbadugly Posted April 24, 2017 Posted April 24, 2017 Titanium bolts could be an option, but check the other things like pivots, shock pressure (according to sag, not pressure), etc. first. With the shock loose you should be able to check that the suspension cycles easily.Nope.High tensile steel.
PhilipV Posted April 24, 2017 Posted April 24, 2017 Were you sitting down going through the dip?You need to be out of the saddle to allow your legs to absorb the bump. Your calves are better shock absorbers than anything Fox or Rockshox can make. The combined force of the dip and your weight will be too much if sitting down. If you were standing up and this happened, then something is seriously wrong.
Captain Fastbastard Mayhem Posted April 24, 2017 Posted April 24, 2017 What Philip says. Also check if the bolts are torqued correctly, and whether there's a missing spacer or washer or bushing etc. Any gap in the mounting will result in a weak spot and will most likely result in a sheared bolt.
RiverInTheRoad Posted April 24, 2017 Posted April 24, 2017 Dismantle your suspension linkage, replace pivot bearings and lube us manufacturer recommends. The bolt shouldn't snap even if you are heavy and used incorrect technique.
MrJacques Posted April 24, 2017 Posted April 24, 2017 Nope.High tensile steel. Yeti offers a titanium upgrade kit, although I don't think it's for the op's bike. But high tensile steel would work as well. They actually list the reason for breakages as people inflating the shock to too high pressure. https://store.yetisnowmx.ca/products/shaft-lower-shock-titanium-upgrade-kit-7-parts
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