Ceres Posted May 30, 2012 Share So today I test rode a 29er Scott Spark elite on Eselfontein, thought it would really be a problem in the tight and twisty stuff to my suprise it was not bad, short steap climbs also not a problem. The only problem I had with it was the length of the cranks my pedals kept hitting little rocks and when going on a track with a bit of a camber the pedals would also scrape along it (never happened on my 26 er). Just want to know if this is a problem with all 29 ers or are the cranks on this bike just too long (and no I havn't messured it so I don't know the length). Do they drop the crank for a lower centre of gravity? Edited May 31, 2012 by Ceres Link to comment Share on other sites More sharing options...
Stevief Posted May 31, 2012 Share Funny u say that, yestrday i went riding in tokai with my mate and he just bought a new spez stumjumper 29er and he was also complaining about the cranks hitting rocks, he had a 26 stumpjumper and he said it didnt happen with that bike. Link to comment Share on other sites More sharing options...
Captain Fastbastard Mayhem Posted May 31, 2012 Share BB is generally lower on the niners than the sixers. This is to get the bigger wheels to "fit" whilst retaining the same general wheelbase of the sixers, and retain some sort of handling characteristics. Tell your friend to keep his pedals level when he gets to the tech stuff. Link to comment Share on other sites More sharing options...
BLACKvoodoo Posted May 31, 2012 Share The cranks are not longer unless only on that bike my crank on the 26 and 29 are the same.you should be riding with your crank horizontal , not vertical Link to comment Share on other sites More sharing options...
Li Mu Bai Posted May 31, 2012 Share So today I test rode a 29er Scott Spark elite on Eselfontein, thought it would really be a problem in the tight and twisty stuff to my suprise it was not bad, short steap climbs also not a problem. The only problem I had with it was the length of the cranks my pedals kept hitting little rocks and when going on a track with a bit of a camber the pedals would also scrape along it (never happened on my 26 er). Just want to know if this is a problem with all 29 ers or are the cranks on this bike just too long (and no I havn't messured it so I don't know the length). Do they drop the crank for a lower centre of gravity?The Spark has a high and low adjustment setting at the junction of the rear shock to the frame. this changes the centre of gravity (low) and the angle of the head tube.It comes set on low as standard. Change the small eliptical nut around to its high setting and you will raise the crank/bb height enough to avoid this problem.remember as with all dual suspension bikes 29" or 26", the flex of the bike caused by the rear shock can cause a pedal to hit an obstacle as you pass over it. you need to change riding style and mind your pedal strokes, or keep cranks levelled when passing over a tree stump type obstacle, regardless if its 29" or 26" Andro 1 Link to comment Share on other sites More sharing options...
TheV Posted May 31, 2012 Share The cranks are not longer unless only on that bike my crank on the 26 and 29 are the same.you should be riding with your crank horizontal , not vertical My crank turns... 360 degree's... I tried riding with it horizontal as per your suggestion but then my bike doesn't move... i do a track-stand for a while, waiting for it to move, but eventually i just fall over sideways... Maybe I'm doing something wrong, or lack your skillz Edited May 31, 2012 by TheV Scott2luvit 1 Link to comment Share on other sites More sharing options...
Cav' Posted May 31, 2012 Share My crank turns... 360 degree's... I tried riding with it horizontal as per your suggestion but then my bike doesn't move... i do a track-stand for a while, waiting for it to move, but eventually i just fall over sideways... Maybe I'm doing something wrong, or lack your skillz Link to comment Share on other sites More sharing options...
Ceres Posted May 31, 2012 Share My crank turns... 360 degree's... I tried riding with it horizontal as per your suggestion but then my bike doesn't move... i do a track-stand for a while, waiting for it to move, but eventually i just fall over sideways... Maybe I'm doing something wrong, or lack your skillz I agree not pedalling doesn't make the bike go. Go figure Link to comment Share on other sites More sharing options...
Andro Posted May 31, 2012 Share Joh... ok. dependes on those rocks..... lol. Sorry, cant help. Dont know the geo of that frame. Ride a hardtail. Nothing change while riding. Link to comment Share on other sites More sharing options...
Li Mu Bai Posted May 31, 2012 Share My crank turns... 360 degree's... I tried riding with it horizontal as per your suggestion but then my bike doesn't move... i do a track-stand for a while, waiting for it to move, but eventually i just fall over sideways... Maybe I'm doing something wrong, or lack your skillz any reason for your sarcasm? perhaps you should have your eves checked or get reading glasses, as I clearly suggested keeping pedals level when passing over an obstacle, as a way to avoid smacking it if you had one foot down.the rest of us will keep pedalling whilst you practice your track stand... Link to comment Share on other sites More sharing options...
Ceres Posted May 31, 2012 Share any reason for your sarcasm? perhaps you should have your eves checked or get reading glasses, as I clearly suggested keeping pedals level when passing over an obstacle, as a way to avoid smacking it if you had one foot down.the rest of us will keep pedalling whilst you practice your track stand... I know what you trying to say but if you have ridden Eselfontein before you would know that if you kept your pedals level when you passed over obstacles you wouldn't get anywhere there are so many. Link to comment Share on other sites More sharing options...
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