mudda Posted February 24, 2015 Posted February 24, 2015 When gears starts jumping when you put down the power with a new chain then the sprocket and/or casstete has turned into a ninja star.
Gandalf Posted February 24, 2015 Posted February 24, 2015 That is very unusual. Should not work like that.I use a chain checker, replace the chain when too stretched. Replace cassette when the teeth are showing signs of good wear. same with the front chain rings.
babse Posted February 24, 2015 Posted February 24, 2015 about to change my XT chain, cassette and chainring (wolftooth) with 7300kms on them. less than 1000kms and id have to change them every month edit : checked strava for exact mileage
gtr1 Posted February 24, 2015 Posted February 24, 2015 I did 7000 k's before changing cassette and chain together. After another 7000 I changed chainrings as well as chain and cassette.
gtr1 Posted February 24, 2015 Posted February 24, 2015 And this was an XX chain and cassette. Didn't replace with XX as was way too expensive :-(
Cois Posted February 24, 2015 Author Posted February 24, 2015 See a little wear, but still think that is still within limits?
Cois Posted February 24, 2015 Author Posted February 24, 2015 Check your cable tension first, then the cable & housing. That's normally where the majority of gearing issues arise from. Replaced them less than 300 km ago. Checked the shifting. It runs as it should. Chain started slipping after using Smooth on my chain...
Cois Posted February 24, 2015 Author Posted February 24, 2015 When gears starts jumping when you put down the power with a new chain then the sprocket and/or casstete has turned into a ninja star.Slips at the back. Will replace and test. Just have to make it home tonight.
Amberdrake Posted February 24, 2015 Posted February 24, 2015 Did you check the chain for a damaged link? With such a new drive train i highly doubt wear is the real cause. Unfortunately not a lot of things cause skipping. Did you replace jockey wheels? those might also be the cause.
cadenceblur Posted February 24, 2015 Posted February 24, 2015 Are all chain checkers equal? Park Tool have on as do Ice Tool?
KarlvN Posted February 24, 2015 Posted February 24, 2015 My chain and cassette are still the original that were on my bike and have about 2100km's on them. I have done around 85% trails and the rest road, and my gears are still going well. The only issue I have is some slipping every now and then, but I guess that is due to cable tension.
Captain Fastbastard Mayhem Posted February 24, 2015 Posted February 24, 2015 Did you check the chain for a damaged link? With such a new drive train i highly doubt wear is the real cause. Unfortunately not a lot of things cause skipping. Did you replace jockey wheels? those might also be the cause.This. It may also be an improperly seated quicklink, or a stiff pin. Quicklinks need to be properly fitted otherwise they WILL cause the chain to skip under power.
Amberdrake Posted February 24, 2015 Posted February 24, 2015 Chain tool is a chain tool they all work on same principle. If you have a vernier caliper you can use that after googling the lenght where chain is worn. Some of the guys here will however tell you to measure outside links with a ruler.
divernick Posted February 24, 2015 Posted February 24, 2015 Do this: Get a chain checker tool and measure once a month. Replace chain at 0.75% wear.Replace cassette and chainrings every 3-4 chains.
cadenceblur Posted February 24, 2015 Posted February 24, 2015 I've heard about that. What's the measurement?
GLuvsMtb Posted February 24, 2015 Posted February 24, 2015 also check that your hanger is straight and RD is not coming loose from the hanger. I had a loose RD and rode with a semi-automatic-totally-erratic for a week or so when my buddy commented on the daylight between RD and hanger.
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