New bike issues

CliffyG

CliffyG

CliffyG

Soldato
Joined
18 Oct 2002
Posts
17,424
Location
Cambridge
My wife got me a Carrera Crossfire 2 for Christas. She got it from Halfords and I ended up taking to Rutlands to service after a few rides as it wasn't put together very well. One of the issues was that the chain was slipping occasionally when in 24th gear and quite a bit when going up hills in 8th gear. This issue still occurs after the service.
I rang them up about it and the bloke said my sprocket would be worn. I've ridden it 11 times in total, around 13k each time. I ride 99% of the time in 24th, 1% in 8th. He said I need to change gears more. Surely this can't be a thing? Virtually brand new and although not expensive it's not a cheap bike. My last bike was awful and I never had the chain slip once even though I used the same gears.
 
I meant highest gear (but your description sounds right). I only ever change the front gears, back one remains in the same place.

I haven't oiled it at all yet as it was recently serviced and I've barely used it.
 
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Hmm it's quite expensive for a cheap nasty bike. I thought Carrera were an ok brand. I'll have to drop it off at Rutland again and see if they can replace the faulty bits with something a bit more robust.
 
mattyfez said:
Shouldn't contribute so much wear in such short millage, but you're deffinatley not using your gears correctly.

On a 3x8 gear system I'd imagine youd spend 99% of the time on the middle front ring, using the rear gears accordingly. You'd only use the small and large front rings for steep hills and going at full speed/downhill respectivley.

EDIT: if you're putting an unnessesary amount or torque through the system by being in too high a gear, that will wear out cheaper chains and sprockets a lot faster.
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That makes sense, I always leave it in that gear so I work my legs as much as possible during my short rides. I hadn't considered it causing wear as it was fine on my older very cheap bike. I shall get it repaired and try riding it differently in future.
 
mattyfez said:
Not really... Older setups can be more tolerant as you might only have 7 cogs on the rear so the chain line remains relatively straight.

When you get onto bigger rear cassettes with more cogs (more gears) it becomes an issue.
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My last one was a 24 gear one too. I rode that 99% of the time in the top gear. Not a single issue.
 
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