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Adjusting brakes



 
 
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  #11  
Old July 20th 20, 12:23 AM posted to rec.bicycles.tech
AK[_2_]
external usenet poster
 
Posts: 209
Default Adjusting brakes

On Sunday, July 19, 2020 at 3:00:48 PM UTC-5, Frank Krygowski wrote:
On 7/19/2020 2:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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


Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


If you mean "yes" to bearing slop and cable kinks, start there. Fix those.

The portion of cable visible in those photos looks extra long. You may
have similar extra length at brake lever end. Sometimes that can cause
some extra lost motion. Whether or not you correct that by shortening
the cable and housing, you might try lubricating your cables.

Are your brake levers adjustable for reach? Some are. Try that adjustment.

Those brakes themselves are pretty foolproof.

--
- Frank Krygowski


Thanks.

I lubricated the cable with a synthetic grease.

Brakes are ok now.

But I left this rubber boot off?

What does it do?

https://imgur.com/a/nEV1uUX

Andy
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  #12  
Old July 20th 20, 12:37 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 12,012
Default Adjusting brakes

On 7/19/2020 1:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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


Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


I don't see anything unusual.

Are the cables and brake pivots free moving and lubricated,
tat is, does the brake snap open when you release the lever?

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


  #13  
Old July 20th 20, 12:44 AM posted to rec.bicycles.tech
AK[_2_]
external usenet poster
 
Posts: 209
Default Adjusting brakes

On Sunday, July 19, 2020 at 6:37:22 PM UTC-5, AMuzi wrote:
On 7/19/2020 1:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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


Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


I don't see anything unusual.

Are the cables and brake pivots free moving and lubricated,
tat is, does the brake snap open when you release the lever?

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



Thanks.

I lubricated the cable with a synthetic grease.

Brakes are ok now.

But I left this rubber boot off? :-(

What does it do?

https://imgur.com/a/nEV1uUX
  #14  
Old July 20th 20, 01:05 AM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 12,012
Default Adjusting brakes

On 7/19/2020 6:23 PM, AK wrote:
On Sunday, July 19, 2020 at 3:00:48 PM UTC-5, Frank Krygowski wrote:
On 7/19/2020 2:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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

Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


If you mean "yes" to bearing slop and cable kinks, start there. Fix those.

The portion of cable visible in those photos looks extra long. You may
have similar extra length at brake lever end. Sometimes that can cause
some extra lost motion. Whether or not you correct that by shortening
the cable and housing, you might try lubricating your cables.

Are your brake levers adjustable for reach? Some are. Try that adjustment.

Those brakes themselves are pretty foolproof.

--
- Frank Krygowski


Thanks.

I lubricated the cable with a synthetic grease.

Brakes are ok now.

But I left this rubber boot off?

What does it do?

https://imgur.com/a/nEV1uUX

Andy


Purely aesthetic or as my industry experts often note, "It's
for selling." Don't worry over it.

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


  #15  
Old July 20th 20, 01:10 AM posted to rec.bicycles.tech
AK[_2_]
external usenet poster
 
Posts: 209
Default Adjusting brakes

On Sunday, July 19, 2020 at 7:05:47 PM UTC-5, AMuzi wrote:
On 7/19/2020 6:23 PM, AK wrote:
On Sunday, July 19, 2020 at 3:00:48 PM UTC-5, Frank Krygowski wrote:
On 7/19/2020 2:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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

Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q

If you mean "yes" to bearing slop and cable kinks, start there. Fix those.

The portion of cable visible in those photos looks extra long. You may
have similar extra length at brake lever end. Sometimes that can cause
some extra lost motion. Whether or not you correct that by shortening
the cable and housing, you might try lubricating your cables.

Are your brake levers adjustable for reach? Some are. Try that adjustment.

Those brakes themselves are pretty foolproof.

--
- Frank Krygowski


Thanks.

I lubricated the cable with a synthetic grease.

Brakes are ok now.

But I left this rubber boot off?

What does it do?

https://imgur.com/a/nEV1uUX

Andy


Purely aesthetic or as my industry experts often note, "It's
for selling." Don't worry over it.

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


Thanks.
  #16  
Old July 20th 20, 02:59 PM posted to rec.bicycles.tech
AK[_2_]
external usenet poster
 
Posts: 209
Default Adjusting brakes

On Sunday, July 19, 2020 at 6:37:22 PM UTC-5, AMuzi wrote:
On 7/19/2020 1:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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


Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


I don't see anything unusual.

Are the cables and brake pivots free moving and lubricated,
tat is, does the brake snap open when you release the lever?

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


I just found a broken spoke on my rear wheel.

I think my bike is plain wore out.

I need a better bike, but everyone is out except those bikes costing $800+.

Does anyone have any mountain bikes in stock?

Andy
  #17  
Old July 20th 20, 04:04 PM posted to rec.bicycles.tech
Lou Holtman[_5_]
external usenet poster
 
Posts: 455
Default Adjusting brakes

On Monday, July 20, 2020 at 3:59:59 PM UTC+2, AK wrote:
On Sunday, July 19, 2020 at 6:37:22 PM UTC-5, AMuzi wrote:
On 7/19/2020 1:44 PM, AK wrote:
On Saturday, July 18, 2020 at 7:59:12 AM UTC-5, AMuzi wrote:
On 7/18/2020 2:39 AM, AK wrote:
I am having a very hard time adjusting my rear brakes.

I have a mountain bike. Low end. :-)

If I adjust it to where it grabs the rim tightly, it slows my bike down due to the resistance from the brake touching the rim.

It's very frustrating.

Thanks,
Andy


First off, does your rim run straight without dents ? Any
bearing slop?
Secondly are there kinks or other impedimanta to your cable?

Do your brake pads meet the rim squarely and fully or are
they askew?

Is everything original? Mismatch of standard lever with
long pull linear brake would give that symptom.

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

Yes to all your questions.

https://imgur.com/a/e61C1L5

https://imgur.com/a/nXBEr1Q


I don't see anything unusual.

Are the cables and brake pivots free moving and lubricated,
tat is, does the brake snap open when you release the lever?

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


I just found a broken spoke on my rear wheel.

I think my bike is plain wore out.

I need a better bike, but everyone is out except those bikes costing $800+.

Does anyone have any mountain bikes in stock?

Andy


Spend some time and money on maintenance. Cleaning, lubing and replace cables. This often does wonders to your bike.

Lou
  #18  
Old July 20th 20, 04:49 PM posted to rec.bicycles.tech
Stephen Bauman[_2_]
external usenet poster
 
Posts: 7
Default Adjusting brakes

On Monday, July 20, 2020 at 9:59:59 AM UTC-4, AK wrote:

I just found a broken spoke on my rear wheel.

I think my bike is plain wore out.

I need a better bike, but everyone is out except those bikes costing $800+.

Does anyone have any mountain bikes in stock?

Andy


The broken spoke probably means the wheel is wobbling from side to side, when it is spun. This means you had to increase the brake clearance to make sure the brakes did not rub. The increased clearance meant that the brakes did not lock onto the rim, when you applied the brakes.

The first order of business is to replace the broken spoke and true the wheel. You may find there are more than one broken spoke. This is best done by a bike shop.

Once the wheel is fixed, the brakes should be easy to adjust.
  #19  
Old July 21st 20, 03:04 AM posted to rec.bicycles.tech
AK[_2_]
external usenet poster
 
Posts: 209
Default Adjusting brakes

On Monday, July 20, 2020 at 10:49:43 AM UTC-5, Stephen Bauman wrote:
On Monday, July 20, 2020 at 9:59:59 AM UTC-4, AK wrote:

I just found a broken spoke on my rear wheel.

I think my bike is plain wore out.

I need a better bike, but everyone is out except those bikes costing $800+.

Does anyone have any mountain bikes in stock?

Andy


The broken spoke probably means the wheel is wobbling from side to side, when it is spun. This means you had to increase the brake clearance to make sure the brakes did not rub. The increased clearance meant that the brakes did not lock onto the rim, when you applied the brakes.

The first order of business is to replace the broken spoke and true the wheel. You may find there are more than one broken spoke. This is best done by a bike shop.

Once the wheel is fixed, the brakes should be easy to adjust.


Bike is at the shop for spoke replacement and truing.

I saw some material on truing, but it was confusing at best.

Andy
  #20  
Old July 21st 20, 03:14 AM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 4,127
Default Adjusting brakes

On Mon, 20 Jul 2020 19:04:34 -0700 (PDT), AK
wrote:

On Monday, July 20, 2020 at 10:49:43 AM UTC-5, Stephen Bauman wrote:
On Monday, July 20, 2020 at 9:59:59 AM UTC-4, AK wrote:

I just found a broken spoke on my rear wheel.

I think my bike is plain wore out.

I need a better bike, but everyone is out except those bikes costing $800+.

Does anyone have any mountain bikes in stock?

Andy


The broken spoke probably means the wheel is wobbling from side to side, when it is spun. This means you had to increase the brake clearance to make sure the brakes did not rub. The increased clearance meant that the brakes did not lock onto the rim, when you applied the brakes.

The first order of business is to replace the broken spoke and true the wheel. You may find there are more than one broken spoke. This is best done by a bike shop.

Once the wheel is fixed, the brakes should be easy to adjust.


Bike is at the shop for spoke replacement and truing.

I saw some material on truing, but it was confusing at best.

Andy


There is a book - "The Bicycle Wheel", by Jobst Brandt, which can be
downloaded that explains the bicycle wheel in excruciating detail, but
it is probably more logical for the average rider to just take the
bike to a bicycle shop :-)
--
Cheers,

John B.

 




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