Cassette, chain and front ring wear questions?

Arequipa

Hi!

I hope you are well,

I am commuting to work every weekday on my roadbike. It has an 11/32 rear cassette, 11 speed Sram chain and 50/34 chainrings up front.

I check the chain wear every month or so and when it is past .5 worn, I change for a new chain..

I just changed the chain recently and on the 7th and 8th gear on the rear, it tends to skip under power..

As I have put a couple of weeks commuting kms into it... it has seemed to have skipped less..

I washthe bike about once a week...

My question is: is there anything else I can do to extend the life of the cassette, chainring?

I think the 7th and 8th cog is where I do most of my riding so has worn more quickly...

I imagine I would have to change the cassette after this chain is worn... so can ride it until it is significantly worn?

Thanks for reading,

A

magicbastarder

generally people will change the cassette every 3 chains (though some do it every two chains). how many times have you replaced the chain?

Arequipa

Hi!

i am not 100% sure.. it could be number 3 or 4?

CramCycle

Take a picture and put it up of your cassette and chainrings. It is most likely wear. You could up your rpm and use other cogs. Other than waxing, not a huge amount else you can do to increase lifespan. If the chainring and cassette is worn, it will wear your chain quicker as well.

dahat

https://www.boards.ie/discussion/comment/122665687#Comment_122665687

This practise has served me for years but on Shimano chains I change at 0.75 which means I get a little longer than the OP.

Arequipa

thanks for the replies...so if this is the last chain woth this cassette...

can I ride it until it is even past .75 wear and then replace both?

CramCycle

https://www.boards.ie/discussion/comment/122667066#Comment_122667066

Ride it until it starts slipping if you are getting rid of everything after. Personally I would try and use different gears and spin a bit faster, you will get way longer.

magicbastarder

https://www.boards.ie/discussion/comment/122666043#Comment_122666043

yep, my chain wear checker is set for .75% and 1% wear, so i usually wait until it just nudges into .75%.

Wishbone Ash

The reason it is skipping less now is that the new chain has worn into the old cogs.

I change chain at 1.0 (approx 5,000kms) and change cassette every 2 chains. I do the large chainring after about 5 chain replacements. (I don't ever recall changing a 34 chainring).

Arequipa

okay.. thank you.. that sounds like a good system!

Arequipa

i think that 7th cog on the rear and 34 ring up front are obviously my ideal gear for cruising along to work!

Wishbone Ash

https://www.boards.ie/discussion/comment/122669273#Comment_122669273

Just curious but a 32 on the rear sounds excessive for a commute. Is your commute very lumpy or very long? If not, you may be better served with a low maintenance single speed.

Arequipa

Hi! fair point ... i do cycle uphill towards Sandyford from town.. so a bit of climbing & I cycle a fair bit outside from my commute and love to climb..but apart from that, a fixie would be good!

Wishbone Ash

https://www.boards.ie/discussion/comment/122691518#Comment_122691518

Well prehaps a single speed rather than a fixie. Fixies take a bit of getting used to especially on wet roundabouts as you can't coast.