Re: GRX front derailleur.

On 2/16/2025 11:16 AM, Roger Merriman wrote:

AMuzi <am@yellowjersey.org> wrote:

On 2/16/2025 5:07 AM, Roger Merriman wrote:

cyclintom <cyclintom@yahoo.com> wrote:

On Fri Feb 14 21:55:41 2025 Roger Merriman  wrote:

cyclintom <cyclintom@yahoo.com> wrote:

Holding on to the cable you car feel the left lever pullind and releasing
due to lever settings. but it doesn't appear to be moving the front derailleur.
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Any suggestions?
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Somewhat confused to be honest, is the shifter moving the cable? But the
Derailleur isn?t moving?
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As side note GRX is compatible with lots of other group-sets I have
GRX/Tiagra/Sora mix on the Gravel bike.

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I got it working. The connection through the reel is pretty tricky. You
have to hold it in p;lace and then shift up a gear to lock in place. Same
on the other side. Then you pull the wire tight at the other end and
shift down and take out the slack. Then shift bach and take out the slack
again. These disk brake bikes are heavy, The complete build on this
superlight frame is still 20 lbs at the end.
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GRX 10s is around the Tiagra groupset area ie middle range and light weight
isn’t perhaps its first priority the rear mech’s have a clutch, if your
riding on road can flick the switch to get lighter shifts.
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With road bikes going for wider tyres, and aero bits and bobs, and
electronic gear weights have crept up, this said the uk hill climb bikes do
see bikes around the 6KG mark disks or not, do occasionally see bikes
getting sub 5KG but thats more folks having fun with weird and expensive
one of bits of kits than a bike that is race fit!
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Roger Merriman
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Always been that way.  Beryl Burton showed up at time trials
(and won more often than not for 25 years) with some scary
light machines 60 years ago.
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Certainly now and has been for while weight hasn’t been TTer Focus but aero
hence silly hats and what not! The hill climbs absolutely go for it weight
or lack of it though with some spectacular if perhaps not particularly
functional machines!
 Perhaps bikes at the time were heavy enough to make a difference?
 Roger Merriman
 

Using much of the Beryl Burton equipment, here's an example from when road racing bikes were 21lb.
http://www.yellowjersey.org/am19.html
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971