I got a great deal on a new wheelset (Gipiemme Grecal ) for one of my bikes. I put them on my all-steel DeBernardi and experienced a surprising amount of fork shudder on braking. Something I've never seen on the bike previously (Previous wheels were Helium's and a pair of MA40's before that).
This has improved somewhat now, but it made me wonder about these kinds of wheels and newer all CF forks (steerer too).
I wasn't worried about my lugged, threaded fork dealing with this shudder, but what about newer bikes? Is this kind of thing typical of the paired spoke kind of wheels? I also don't see this on my bikes with Kysium wheels and SPOX wheels, although they have a lower than (previously considered normal) spoke counts.
Brakes are Chorus, if that matters. John (no fast alpine descents with these wheels) Rees
Check your brake pads for alignment and proper contact. Often when you switch wheels the pads don't contact the same way. It has nothing to do with the number of spokes.
Jon
"John Rees" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
I got a great deal on a new wheelset (Gipiemme Grecal ) for one of my
bikes.
Quoted message said:
I put them on my all-steel DeBernardi and experienced a surprising amount
of
Quoted message said:
fork shudder on braking. Something I've never seen on the bike previously (Previous wheels were Helium's and a pair of MA40's before that).
This has improved somewhat now, but it made me wonder about these kinds of wheels and newer all CF forks (steerer too).
I wasn't worried about my lugged, threaded fork dealing with this shudder, but what about newer bikes? Is this kind of thing typical of the paired spoke kind of wheels? I also don't see this on my bikes with Kysium
wheels
Quoted message said:
and SPOX wheels, although they have a lower than (previously considered normal) spoke counts.
Brakes are Chorus, if that matters. John (no fast alpine descents with these wheels) Rees
Check your brake pads for alignment and proper contact. Often when you switch wheels the pads don't contact the same way. It has nothing to do with the number of spokes.
It can also be a function of a rim whose sides aren't completely square (perpendicular to the ground). If there's any up/down trueness issue, the brake will see a rim of changing width, which can cause significant pulsing.
"Jon" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Check your brake pads for alignment and proper contact. Often when you switch wheels the pads don't contact the same way. It has nothing to do with the number of spokes.
Jon
"John Rees" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
I got a great deal on a new wheelset (Gipiemme Grecal ) for one of my
bikes.
Quoted message said:
I put them on my all-steel DeBernardi and experienced a surprising
amount
Quoted message said:
of
Quoted message said:
fork shudder on braking. Something I've never seen on the bike
previously
Quoted message said:
Quoted message said:
(Previous wheels were Helium's and a pair of MA40's before that).
This has improved somewhat now, but it made me wonder about these kinds
of
Quoted message said:
Quoted message said:
wheels and newer all CF forks (steerer too).
I wasn't worried about my lugged, threaded fork dealing with this
shudder,
Quoted message said:
Quoted message said:
but what about newer bikes? Is this kind of thing typical of the paired spoke kind of wheels? I also don't see this on my bikes with Kysium
wheels
Quoted message said:
and SPOX wheels, although they have a lower than (previously considered normal) spoke counts.
Brakes are Chorus, if that matters. John (no fast alpine descents with these wheels) Rees
"Mike Jacoubowsky/Chain Reaction Bicycles" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Quoted message said:
Check your brake pads for alignment and proper contact. Often when you switch wheels the pads don't contact the same way. It has nothing to do with the number of spokes.
It can also be a function of a rim whose sides aren't completely square (perpendicular to the ground). If there's any up/down trueness issue, the brake will see a rim of changing width, which can cause significant
"Jon" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Check your brake pads for alignment and proper contact. Often when you switch wheels the pads don't contact the same way. It has nothing to do with the number of spokes.
Jon
"John Rees" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
I got a great deal on a new wheelset (Gipiemme Grecal ) for one of my
bikes.
Quoted message said:
I put them on my all-steel DeBernardi and experienced a surprising
amount
Quoted message said:
of
Quoted message said:
fork shudder on braking. Something I've never seen on the bike
previously
Quoted message said:
Quoted message said:
(Previous wheels were Helium's and a pair of MA40's before that).
This has improved somewhat now, but it made me wonder about these
kinds
Quoted message said:
of
Quoted message said:
Quoted message said:
wheels and newer all CF forks (steerer too).
I wasn't worried about my lugged, threaded fork dealing with this
shudder,
Quoted message said:
Quoted message said:
but what about newer bikes? Is this kind of thing typical of the
paired
Quoted message said:
Quoted message said:
Quoted message said:
spoke kind of wheels? I also don't see this on my bikes with Kysium
wheels
Quoted message said:
and SPOX wheels, although they have a lower than (previously
considered
Quoted message said:
Quoted message said:
Quoted message said:
normal) spoke counts.
Brakes are Chorus, if that matters. John (no fast alpine descents with these wheels) Rees
I'm going to put on a new set of brake pads and re-align them afterwards. The old ones are pretty worn and maybe they just 'miss' the old wheels :-) John Rees
