2024年11月22日 · The bike is a KTM ultra Flite from 2010 with 9-speed cassette Shimano HG50, rear derailleur Shimano Deore XT Shadow and front derailleur Shimano Deore with 3 speeds. Some weeks ago I started to have the problem that when applying a lot of power to the pedals, the chain was slipping (not jumping to another gear but just slipping).

2020年10月17日 · Once one becomes experienced in jumping and starts to reliably clear middle-sized jumps, simply doing them can become quite boring. A medium-sized jump gives a couple to 5 seconds of flight time, which feels like a lot to the rider.

2021年2月14日 · After a few pedal-strokes the rear derailleur completely gives out and the pedals drop to catch up. After much googling it says the most common thing is rear derailleur adjustment is needed, so I h...

2012年4月13日 · Last week, I had to abandon a training ride due to my chain slipping off my rear derailleur jockey wheel. This would only happen when shifting, and most often when either shifting chainrings or shi...

2020年9月25日 · Jumping and acrobatic rely a lot on muscular memory. If you have to take care of your backpack's position and movement all the time, you will teach yourself to also be controlling it, along with your bike and body.

A tune-up fundamental SHOULD be the proper alignment of the rear derailleur hanger. If the shop doesn't use a Park Tool DAG-1 [derailleur hanger alignment gauge], or some other manufacturer's, to inspect, verify, and correct the relation of the hanger to 3 different points on rim of rear wheel at 180 and 45 degrees apart it is throwing parts at a bike.

2010年8月28日 · Well. I've ended up with a 70mm Nukeproof stem. After a month of riding it really has made a big difference to the ride and my confidence levels. The shorter stem has made it easier to keep to the trail in the twisty stuff. I now look over the handlebars at the front axle instead of under. When jumping I can get my weight far enough back to fly ...

2019年8月27日 · There are a few reasons that might cause the jumping of chains. Chain or sprocket is worn out (Buy new ones). The derailleur is misaligned (Needs adjustment). The wheels are not fitted properly making it a bit slanted (clean the crevices and fit the wheel properly). Check all of these and comment back if all are good.

2013年2月6日 · The jumping is either chain friction (ie the links are not moving smoothly against each other) or links catching on teeth. Fagan.co.za has a useful article on chain suck. To summarise his points, the most common causes of chain suck are: Mud causing extra friction; New chain with a worn chain ring; Worn chain with a worn chain ring

2012年2月2日 · As an addendum to other answers, this was happening to me (not ghost shifting but the chain jumping forward). This started on a new chain, so I changed the cassette. It still happened. A test ride demonstrated that it only jumped in the middle chainring (by far the most used) even though it didn't look much more worn than the other rings.