Barbelier
Senior Member
Done 1,000 miles since new and the chain was starting to slip/gears changing without being asked too!
Bike is the Evolution Country Explorer, 9 speed with Shimano HG50 11-32 cassette and a ? Shimano chain.
So decide to change the chain. Want to go for something a bit better/hopefully longer life, without spending a fortune. Read the reviews and opted for the KMC X9-L (Chain), which is Shimano compatible.
Fitted chain taking care to make sure it was the same length/no. of links as old chain. Gave everything a good clean and relub.
Now the gears are worse that before. I change up, they drop down again soon after. I change down, they go up. Seems to happen when I'm on the middle 4-5 gears and on the middle chain ring, which is where I do 80% of my cycling.
Bit of research on here, chat with a bike savy work colleague and decided to try changing the cassette. Guilty of not checking for chain wear since I had the bike and some of the teeth seem to display the shark fin smyptoms.
Again decide to go for a bit of an upgrade and opted for the Shimano HG80 (Cassette). Fitted with no problems. I haven't messed with anything else.
Road tested the bike and no improvement.
So what do I do now?
My thoughts are:
1. Are the cassette and chain compatible?
2. Is the chain length correct? Could it be the old one has stretched and by making the new one the same I have not solved the problem?
3. Could the chainset be worn? Hope not, because that would start to get expensive!
4. Could the rear mech (Shimano Deore) be worn/need adjusting
I'm quite happy to keep working at the problem because I'm enjoying learning how to maintain/work on the bike.
However, I don't know what to look at next, so all suggestion would be gratefully received.
Bike is the Evolution Country Explorer, 9 speed with Shimano HG50 11-32 cassette and a ? Shimano chain.
So decide to change the chain. Want to go for something a bit better/hopefully longer life, without spending a fortune. Read the reviews and opted for the KMC X9-L (Chain), which is Shimano compatible.
Fitted chain taking care to make sure it was the same length/no. of links as old chain. Gave everything a good clean and relub.
Now the gears are worse that before. I change up, they drop down again soon after. I change down, they go up. Seems to happen when I'm on the middle 4-5 gears and on the middle chain ring, which is where I do 80% of my cycling.
Bit of research on here, chat with a bike savy work colleague and decided to try changing the cassette. Guilty of not checking for chain wear since I had the bike and some of the teeth seem to display the shark fin smyptoms.
Again decide to go for a bit of an upgrade and opted for the Shimano HG80 (Cassette). Fitted with no problems. I haven't messed with anything else.
Road tested the bike and no improvement.
So what do I do now?
My thoughts are:
1. Are the cassette and chain compatible?
2. Is the chain length correct? Could it be the old one has stretched and by making the new one the same I have not solved the problem?
3. Could the chainset be worn? Hope not, because that would start to get expensive!
4. Could the rear mech (Shimano Deore) be worn/need adjusting
I'm quite happy to keep working at the problem because I'm enjoying learning how to maintain/work on the bike.
However, I don't know what to look at next, so all suggestion would be gratefully received.