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Gravel bikes



 
 
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  #11  
Old July 29th 20, 05:58 PM posted to rec.bicycles.tech
AMuzi
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Posts: 11,985
Default Gravel bikes

On 7/29/2020 10:03 AM, wrote:
On Wednesday, July 29, 2020 at 7:58:32 AM UTC-7, Tosspot wrote:
On 28/07/2020 22.09, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

They should have a word with their sponsors because those 29" wheels
looked 27" to me.


Although those sorts of bikes normally mount 700c, those particular wheels certainly look 29" to me.


So the gargantuan 622mm rims not those wimpy 622mm rims?

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


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  #12  
Old July 29th 20, 06:39 PM posted to rec.bicycles.tech
[email protected]
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Posts: 896
Default Gravel bikes

On Wednesday, July 29, 2020 at 9:58:28 AM UTC-7, AMuzi wrote:
On 7/29/2020 10:03 AM, wrote:
On Wednesday, July 29, 2020 at 7:58:32 AM UTC-7, Tosspot wrote:
On 28/07/2020 22.09, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

They should have a word with their sponsors because those 29" wheels
looked 27" to me.


Although those sorts of bikes normally mount 700c, those particular wheels certainly look 29" to me.


So the gargantuan 622mm rims not those wimpy 622mm rims?


While they have the same diameter a 29er rim is wider. 27.5" rims have the same diameter as a 650b but again they are wider to mount up to 42 mm wide tires.
  #13  
Old July 29th 20, 07:32 PM posted to rec.bicycles.tech
Sir Ridesalot
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Posts: 4,996
Default Gravel bikes

On Tuesday, 28 July 2020 23:00:48 UTC-4, AK wrote:
On Tuesday, July 28, 2020 at 4:48:34 PM UTC-5, Sir Ridesalot wrote:
On Tuesday, 28 July 2020 17:09:31 UTC-4, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy


I have old rigid frame & fork MTBs (converted to dropbars) that I ride on gravel roads or trails. I enjoy them a lot and the conversion wasn't expensive. Cost wise it sure beats buying a new dedicated gravel bike.

Cheers


You are right, the gravel bikes are expensive.

About how much was the conversion?

Andy


Not much. I had most of the parts here or on another bike I was converting to something else.

Bar-end shifters, Shimano Brifters, or Campagnolo Ergos work really well. I liked the Ergos at first because the brake lever was solid and the cables went under the bar tape. I see that Shimano changed to that routing too.

Cheers
  #14  
Old July 29th 20, 07:40 PM posted to rec.bicycles.tech
Tosspot[_3_]
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Posts: 1,498
Default Gravel bikes

On 29/07/2020 19.32, Sir Ridesalot wrote:
On Tuesday, 28 July 2020 23:00:48 UTC-4, AK wrote:
On Tuesday, July 28, 2020 at 4:48:34 PM UTC-5, Sir Ridesalot
wrote:
On Tuesday, 28 July 2020 17:09:31 UTC-4, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy

I have old rigid frame & fork MTBs (converted to dropbars) that I
ride on gravel roads or trails. I enjoy them a lot and the
conversion wasn't expensive. Cost wise it sure beats buying a new
dedicated gravel bike.

Cheers


You are right, the gravel bikes are expensive.

About how much was the conversion?

Andy


Not much. I had most of the parts here or on another bike I was
converting to something else.

Bar-end shifters, Shimano Brifters, or Campagnolo Ergos work really
well. I liked the Ergos at first because the brake lever was solid
and the cables went under the bar tape. I see that Shimano changed to
that routing too.


What is the routing these days?

  #15  
Old July 29th 20, 08:04 PM posted to rec.bicycles.tech
Sir Ridesalot
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Posts: 4,996
Default Gravel bikes

On Wednesday, 29 July 2020 14:40:22 UTC-4, Tosspot wrote:
On 29/07/2020 19.32, Sir Ridesalot wrote:
On Tuesday, 28 July 2020 23:00:48 UTC-4, AK wrote:
On Tuesday, July 28, 2020 at 4:48:34 PM UTC-5, Sir Ridesalot
wrote:
On Tuesday, 28 July 2020 17:09:31 UTC-4, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy

I have old rigid frame & fork MTBs (converted to dropbars) that I
ride on gravel roads or trails. I enjoy them a lot and the
conversion wasn't expensive. Cost wise it sure beats buying a new
dedicated gravel bike.

Cheers

You are right, the gravel bikes are expensive.

About how much was the conversion?

Andy


Not much. I had most of the parts here or on another bike I was
converting to something else.

Bar-end shifters, Shimano Brifters, or Campagnolo Ergos work really
well. I liked the Ergos at first because the brake lever was solid
and the cables went under the bar tape. I see that Shimano changed to
that routing too.


What is the routing these days?


Under the handlebar tape.

Cheers
  #16  
Old July 30th 20, 04:30 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 9,154
Default Gravel bikes

On 7/29/2020 6:53 PM, John B. Slocomb wrote:
On Wed, 29 Jul 2020 15:39:48 -0700 (PDT), "
wrote:

On Tuesday, July 28, 2020 at 4:09:31 PM UTC-5, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy


I've done a few rides recently on gravel roads. They were fun with the group. Not sure

riding them by myself would be any fun. I used a Nashbar cyclocross
bike. Heavy steel. 38mm tires. STI ten speed. Cantilever. Shimano
105 rear derailleur died at the end of one ride and had to be
replaced. So I'm not sure gravel riding is good or not. Not sure
what a gravel bike means. I've ridden many different bikes on gravel
roads just fine. Most gravel roads have two or three perfectly smooth
strips on them that you ride on. Much smoother than many potholed
roads. Less wear and tear on the bike. But you do have to run over
loose rocks when making turns. Those are the rough pothole portions
of gravel roads. Pros ride the cobblestone classics each year on road
racing bikes converted to gravel by putting huge 28mm tires on them.
They ride 150 miles at 30 mph.

Out of curiosity "Shimano 105 rear derailleur died" What actually
happened?


I wondered the same thing.


--
- Frank Krygowski
  #17  
Old July 30th 20, 04:35 PM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 11,985
Default Gravel bikes

On 7/30/2020 10:30 AM, Frank Krygowski wrote:
On 7/29/2020 6:53 PM, John B. Slocomb wrote:
On Wed, 29 Jul 2020 15:39:48 -0700 (PDT),
"
wrote:

On Tuesday, July 28, 2020 at 4:09:31 PM UTC-5, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy

I've done a few rides recently on gravel roads. They
were fun with the group. Not sure

riding them by myself would be any fun. I used a Nashbar
cyclocross
bike. Heavy steel. 38mm tires. STI ten speed.
Cantilever. Shimano
105 rear derailleur died at the end of one ride and had to be
replaced. So I'm not sure gravel riding is good or not.
Not sure
what a gravel bike means. I've ridden many different
bikes on gravel
roads just fine. Most gravel roads have two or three
perfectly smooth
strips on them that you ride on. Much smoother than many
potholed
roads. Less wear and tear on the bike. But you do have
to run over
loose rocks when making turns. Those are the rough
pothole portions
of gravel roads. Pros ride the cobblestone classics each
year on road
racing bikes converted to gravel by putting huge 28mm
tires on them.
They ride 150 miles at 30 mph.

Out of curiosity "Shimano 105 rear derailleur died" What
actually
happened?


I wondered the same thing.



Peruse these:
https://duckduckgo.com/?q=broken+der...es&ia =images

The most common failure being "merge with spokes".

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #18  
Old July 30th 20, 04:49 PM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 9,154
Default Gravel bikes

On 7/30/2020 11:35 AM, AMuzi wrote:
On 7/30/2020 10:30 AM, Frank Krygowski wrote:
On 7/29/2020 6:53 PM, John B. Slocomb wrote:
On Wed, 29 Jul 2020 15:39:48 -0700 (PDT),
"
wrote:

On Tuesday, July 28, 2020 at 4:09:31 PM UTC-5, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy

I've done a few rides recently on gravel roads.* They
were fun with the group.* Not sure
riding them by myself would be any fun.* I used a Nashbar
cyclocross
bike.* Heavy steel.* 38mm tires.* STI ten speed.
Cantilever.* Shimano
105 rear derailleur died at the end of one ride and had to be
replaced.* So I'm not sure gravel riding is good or not.
Not sure
what a gravel bike means.* I've ridden many different
bikes on gravel
roads just fine.* Most gravel roads have two or three
perfectly smooth
strips on them that you ride on.* Much smoother than many
potholed
roads.* Less wear and tear on the bike.* But you do have
to run over
loose rocks when making turns.* Those are the rough
pothole portions
of gravel roads.* Pros ride the cobblestone classics each
year on road
racing bikes converted to gravel by putting huge 28mm
tires on them.
They ride 150 miles at 30 mph.

Out of curiosity "Shimano 105 rear derailleur died" What
actually
happened?


I wondered the same thing.



Peruse these:
https://duckduckgo.com/?q=broken+der...es&ia =images


The most common failure being "merge with spokes".


I've seen such things in real life. On two different occasions, I fixed
similar problems for other riders so they could finish their rides, with
perhaps fewer gears than they had at the start.

But that sort of failure can happen anywhere if the derailleur is
adjusted badly enough. It doesn't have anything to do with gravel riding.

I wondered if Russel's derailleur tried to swallow a rock.


--
- Frank Krygowski
  #19  
Old July 30th 20, 10:14 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 1,649
Default Gravel bikes

On Wednesday, July 29, 2020 at 5:53:08 PM UTC-5, John B. Slocomb wrote:
On Wed, 29 Jul 2020 15:39:48 -0700 (PDT), "
wrote:

On Tuesday, July 28, 2020 at 4:09:31 PM UTC-5, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy


I've done a few rides recently on gravel roads. They were fun with the group. Not sure

riding them by myself would be any fun. I used a Nashbar cyclocross
bike. Heavy steel. 38mm tires. STI ten speed. Cantilever. Shimano
105 rear derailleur died at the end of one ride and had to be
replaced. So I'm not sure gravel riding is good or not. Not sure
what a gravel bike means. I've ridden many different bikes on gravel
roads just fine. Most gravel roads have two or three perfectly smooth
strips on them that you ride on. Much smoother than many potholed
roads. Less wear and tear on the bike. But you do have to run over
loose rocks when making turns. Those are the rough pothole portions
of gravel roads. Pros ride the cobblestone classics each year on road
racing bikes converted to gravel by putting huge 28mm tires on them.
They ride 150 miles at 30 mph.

Out of curiosity "Shimano 105 rear derailleur died" What actually
happened?

Cheers,
John B.


It stopped shifting with the STI levers. I replaced it with another new 105 long cage rear derailleur and the shifting works perfectly again. It happened a few months ago so I cannot remember exactly what happened. But shifting was bad, not precise, move the STI one click and the derailleur did not shift the chain. Move it two or three clicks and it would sort of move the chain. Everything imprecise. New derailleur, no change to cable, and everything shifts perfectly again. So I am pretty sure it was the derailleur, not the cable or shifters. Perfect shifting for several years before the one gravel ride. End of gravel ride bad shifting. New derailleur perfect shifting again with no other changes. So I assume the 20 miles of gravel riding killed the derailleur somehow.
  #20  
Old July 30th 20, 10:52 PM posted to rec.bicycles.tech
Lou Holtman[_5_]
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Posts: 439
Default Gravel bikes

On Thursday, July 30, 2020 at 11:14:59 PM UTC+2, wrote:
On Wednesday, July 29, 2020 at 5:53:08 PM UTC-5, John B. Slocomb wrote:
On Wed, 29 Jul 2020 15:39:48 -0700 (PDT), "
wrote:

On Tuesday, July 28, 2020 at 4:09:31 PM UTC-5, AK wrote:
What do you think of a gravel bike?

Does anyone have one?

https://www.youtube.com/watch?v=XC_xFpg_UmA

Andy

I've done a few rides recently on gravel roads. They were fun with the group. Not sure

riding them by myself would be any fun. I used a Nashbar cyclocross
bike. Heavy steel. 38mm tires. STI ten speed. Cantilever. Shimano
105 rear derailleur died at the end of one ride and had to be
replaced. So I'm not sure gravel riding is good or not. Not sure
what a gravel bike means. I've ridden many different bikes on gravel
roads just fine. Most gravel roads have two or three perfectly smooth
strips on them that you ride on. Much smoother than many potholed
roads. Less wear and tear on the bike. But you do have to run over
loose rocks when making turns. Those are the rough pothole portions
of gravel roads. Pros ride the cobblestone classics each year on road
racing bikes converted to gravel by putting huge 28mm tires on them.
They ride 150 miles at 30 mph.

Out of curiosity "Shimano 105 rear derailleur died" What actually
happened?

Cheers,
John B.


It stopped shifting with the STI levers. I replaced it with another new 105 long cage rear derailleur and the shifting works perfectly again. It happened a few months ago so I cannot remember exactly what happened. But shifting was bad, not precise, move the STI one click and the derailleur did not shift the chain. Move it two or three clicks and it would sort of move the chain. Everything imprecise. New derailleur, no change to cable, and everything shifts perfectly again. So I am pretty sure it was the derailleur, not the cable or shifters. Perfect shifting for several years before the one gravel ride. End of gravel ride bad shifting. New derailleur perfect shifting again with no other changes. So I assume the 20 miles of gravel riding killed the derailleur somehow.


A RD being a spring loaded lever, what can possibly went wrong. What could have happened is a cracked pulley cage plate (inner or outer). My brother had that once causing also weird shifting. Replacing the cracked outer cage plate was less than 10 euro:
https://www.bike-components.de/en/Sh...8-grey-GS-type

Lou
 




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