Chain ring wear

[KneesUp]

Spa do an excellent range of replacement rings. Surely that's easier and more cost effective?

 

[grellboy]

Spa do an excellent range of replacement rings. Surely that's easier and more cost effective?

I'll have a look now at spa. Been trying to find both (36 and 46) just through general googling but is a bewildering choice without ever being quite right so far.

 

[grellboy]

The 120 bcd seems to be the real problem when it comes to replacing individual chainrings. Very limited range.

 

[Smokin Joe]

Be warned when removing chainrings that the worn teeth can be razor sharp and if your allen key slips you will loose some flesh. Always rotate so if you slip, your finger go in a safe direction. Long handled allen keys are safer than the L shaped ones.

What did you have to tell him that for?

We could do with a laugh.

 

[Threevok]

There's not much wear on either rings. Shimano teeth are like that to aid gear shifting. It does confuse a lot of people. If the rings were worn then the teeth look more shark tooth like.

That's what I was looking at and quite of few of them are not far off sharking, looking at that pic

 

[KneesUp]

The 120 bcd seems to be the real problem when it comes to replacing individual chainrings. Very limited range.

Ah. I see the problem.

Is the proposed replacement also 120 bcd? I'd be tempted to get a replacement with a bcd you can get spare for!

 

[vickster]

Spa cycles should be able to help with new rings. Give them a call

 

[grellboy]

Spa cycles should be able to help with new rings. Give them a call

Thanks all for heads up on Spa. Chap was very helpful. Unfortunately due to the rarity of the 120 bcd, nothing doing until Hallowe'en!

 

[Ajax Bay]

The 120 bcd seems to be the real problem when it comes to replacing individual chainrings. Very limited range.

Bit surprised your chainset has 120mm BCD. Suspect the Spa Cycles guy was too.
ETA:

I'd be tempted to get a replacement with a bcd you can get spare for!

This.

 

[si_c]

I'd check the teeth on the 36t chainring, just because the 46 is worn doesn't mean that the inner ring is also worn to the same degree - especially if like me you spend the majority of your time in the big ring.

Tredz are pretty good with chainrings for FSA, they have 120 bcd rings in stock.