Chain slipping?

[The Bear]

Ive increased the number of teeth on the front chain ring but I've kept the new chain the same length as the previous

 

[JPGiant]

No disrespect, but can you confirm the chain is routed correctly thru' the RD jockey wheel cage.

 

[Sturmey]

Sheldon Brown has a good article explaining why a new chain slips on a worn sprocket below.

Bicycle Chain and Sprocket Engagement and Wear

Maintenance of bicycle chains.

www.sheldonbrown.com

 

[Nealh]

Rear hub geared bikes aren't affected as much as the drive is kinder on both the chain and gear teeth.

 

[KirstinS]

One of the many reasons I love my alfine 8 is that when the rear sprocket wears out they less than a tenner to replace (along with a new chain which can be a nice meaty single speed one if you wish)

 

[50Cycles victim]

could someone suggest which replacement chain I should buy? This information appears nowhere that I can see in the documentation!

 

[soundwave]

all you can do is try different makes and see what lasts longer.

 

[jarob10]

Before you spend anymore, check your derailleur tension screw setting. Maximise chain wrap around each sprocket- top jockey wheel positioned such that the chain is just clear of the cassette when in gear 11

 

[Martin56]

A few strokes with a round file on the bearing sides of the rear chainrings seems to work.

 

[The Bear]

A few strokes with a round file on the bearing sides of the rear chainrings seems to work.

Might give this a try with my chainsaw file.

 

[Deleted member 25121]

This is where an angle grinder saves a lot of time.

 

[krzychoniusz]

Have you done a proper gear adjustment after replacing the ring, if not then you should start with that. Make sure the limits are set correctly (both front and rear gears). Also check if you're using the correct chain size for your setup.

The problem could also be a change in the chain tension, as the rear derailleur is now working with a larger cog. Check if derailleur is properly adjusted and maintains the correct tension. Watch for any sudden chain 'jumps' when shifting gears, if that occurs then get a £7 chain tensioner from ebay (the one with jockey wheel and tension spring, not a fixed one as shown on this video

) and install it near the front ring, that should solve the problem.

 

[Fat Rat]

I can only add to what some have already said
It's 100percent wear on the rear
Nothing more nothing less