On 11 Jul 2006 19:56:27 -0700, "Iván C. Filpo"
wrote:

I just bought a mongoose with shimano gear; the gears are very nice
they are very accurate compared to other ones I have tested. However,
sometimes when sudden increase the speed

I feel sort of like a slipage
of the chain.
??

you mean a skip?
check your connect link, it might be stuck (bad assembly, happens all
the tine, it's called negligence)
try to loosen it

or you'll go back to your LBS and ask them to fix this
- mount a new chain and you'll check the link assembly
- and better mount a chain with a quick link (Sram Connectix KMC etc)
these chain are better also, even the 'same priced' (lighter, more
subtle than shimano)

mt





I thought that the solution lied in the alignment of the sprockets, but
I am not sure since it shifts very well, it is just when I go for a
sudden increase of speed.

Is this normal? Does it mean the sprockets have to be line up?

Thanks for your answers,

Iván C. Filpo