mtb brake & rear derailleur questions



A

anonymous

Guest
my bike is at least 10 years old, and i need to
upgrade my brakes and rear derailleur.
my old components are xt cantilever brakes and
xt 8-speed shifters/derailleur.

so my questions are:

can i use my exitsting brake levers (non v-type)
with v-brakes? will they work, or must i upgrade
the brake levers too?

can the current 9 speed derailleurs
(xt rdm750 / rdm760) compatible with 8-speed
shifters or do i need to specifically get
a 8 speed derailleur.

thanks in advance
 
P

Peter Cole

Guest
"anonymous" <[email protected]> wrote in message
news:[email protected]
>
>
> my bike is at least 10 years old, and i need to
> upgrade my brakes and rear derailleur.
> my old components are xt cantilever brakes and
> xt 8-speed shifters/derailleur.
>
> so my questions are:
>
> can i use my exitsting brake levers (non v-type)
> with v-brakes? will they work, or must i upgrade
> the brake levers too?


Yes, you must upgrade, most canti levers won't work well with V brakes. The
mechanical advantage of canti levers is higher.

> can the current 9 speed derailleurs
> (xt rdm750 / rdm760) compatible with 8-speed
> shifters or do i need to specifically get
> a 8 speed derailleur.


No, 8 & 9 speed derailers are identical for all purposes.
 
B

Booker C. Bense

Guest
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In article <[email protected]>,
anonymous <[email protected]> wrote:
>
>
>my bike is at least 10 years old, and i need to
>upgrade my brakes and rear derailleur.
>my old components are xt cantilever brakes and
>xt 8-speed shifters/derailleur.


_ What's wrong with the brakes? Those are very
nice canti brakes and with new shoes, cables
and housing should be fine, see

http://sheldonbrown.com/harris/cantilevers/index.html

>
>so my questions are:
>
>can i use my exitsting brake levers (non v-type)
>with v-brakes? will they work, or must i upgrade
>the brake levers too?


_ You either need new brake levers or a gizmo[1] that
costs nearly as much as new brake levers. Your old
brakes don't pull enough cable for V-brakes.

>
>can the current 9 speed derailleurs
>(xt rdm750 / rdm760) compatible with 8-speed
>shifters or do i need to specifically get
>a 8 speed derailleur.


_ A nine speed derailler should work fine with
8 speeds shifters.

_ Booker C. Bense

[1]- It's called a Travel Agent, try googling
"brake travel agent"


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