|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Possible to have brake pads too close to rims?
Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires.
Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers |
Ads |
#2
|
|||
|
|||
Possible to have brake pads too close to rims?
On 11/19/2014 4:32 PM, Sir Ridesalot wrote:
Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#3
|
|||
|
|||
Possible to have brake pads too close to rims?
AMuzi writes:
On 11/19/2014 4:32 PM, Sir Ridesalot wrote: Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. Yeah, my wife has small hands and sets her brakes up so they don't engage until the brake lever is quite close to the bars. Worries me, since there isn't much room for wear. With them engaging earlier she cannot apply as much force. -- Joe Riel |
#4
|
|||
|
|||
Possible to have brake pads too close to rims?
buy new pads and start over. 2 differently worn pad shapes may plague your approach.
maybe. how's the attack angle ? try changing attack, distance from rim, front and rear pad. when you develop problems whether real or not, measureable or not, you can see where new pads...lika new motor solve, whatever. a short gap may produce greater effects from all of the above than a wider gap as the attack and coordination times between the 2 pads grows longer, less abrupt possibly more effective. hows that for bullsheeeet ? |
#5
|
|||
|
|||
Possible to have brake pads too close to rims?
On 11/19/2014 5:32 PM, Sir Ridesalot wrote:
Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? I suppose it's possible, but that's in the same sense that "anything is possible." I'm trying to visualize the geometry of different brakes, and wondering if some resulting change in geometry might increase mechanical advantage. So - What model of brakes? What model of brake lever? What type of quick release? I'm also wondering about other weird factors. Maybe something like a strand of cable that's broken away, and is restricting motion somehow. Is it both front and rear brakes? Can we see a photo? -- - Frank Krygowski |
#6
|
|||
|
|||
Possible to have brake pads too close to rims?
On Wednesday, November 19, 2014 6:05:29 PM UTC-5, AMuzi wrote:
On 11/19/2014 4:32 PM, Sir Ridesalot wrote: Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Shimano 600 Arabesque brake calipers and matching brake levers. New brake blocks. Cheers |
#7
|
|||
|
|||
Possible to have brake pads too close to rims?
On Wednesday, November 19, 2014 6:28:41 PM UTC-5, JoeRiel wrote:
AMuzi writes: On 11/19/2014 4:32 PM, Sir Ridesalot wrote: Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. Yeah, my wife has small hands and sets her brakes up so they don't engage until the brake lever is quite close to the bars. Worries me, since there isn't much room for wear. With them engaging earlier she cannot apply as much force. -- Joe Riel Not much difference with the brake lever travel when the brake caliper QR is open just a much more positive feel and effect when the brakes are applied. Cheers |
#8
|
|||
|
|||
Possible to have brake pads too close to rims?
readjust system, lube and clean cables. squirt grips with CRC
|
#9
|
|||
|
|||
Possible to have brake pads too close to rims?
On 20/11/2014 01:34, Sir Ridesalot wrote:
On Wednesday, November 19, 2014 6:28:41 PM UTC-5, JoeRiel wrote: AMuzi writes: On 11/19/2014 4:32 PM, Sir Ridesalot wrote: Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. Yeah, my wife has small hands and sets her brakes up so they don't engage until the brake lever is quite close to the bars. Worries me, since there isn't much room for wear. With them engaging earlier she cannot apply as much force. Not much difference with the brake lever travel when the brake caliper QR is open just a much more positive feel and effect when the brakes are applied. Presumably the bite point changes? If it doesn't then the QR is pretty pointless :-) I'm with Andrew - the bite point will have moved so the lever is closer to the bars when you hit it, and your hands are stronger at that point than further out. |
#10
|
|||
|
|||
Possible to have brake pads too close to rims?
Clive George writes:
On 20/11/2014 01:34, Sir Ridesalot wrote: On Wednesday, November 19, 2014 6:28:41 PM UTC-5, JoeRiel wrote: AMuzi writes: On 11/19/2014 4:32 PM, Sir Ridesalot wrote: Okay, you've got very nearly perfectly trued wheels, single pivote calipers brakes and decent quality tires. Braking isn't that great. Flip open the brake caliper quick relese and braking becomes much more effective. Is it possible to have brakes so finely adjusted with the pads so close to the rim that braking ability is degraded whereas moving the pads further from the rim actually improves the braking? Cheers Some QR designs did indeed change the cable leverage slightly, although nothing currently made. More likely you just are able to get a better grasp of the lever when it's closer to the handlebar. Yeah, my wife has small hands and sets her brakes up so they don't engage until the brake lever is quite close to the bars. Worries me, since there isn't much room for wear. With them engaging earlier she cannot apply as much force. Not much difference with the brake lever travel when the brake caliper QR is open just a much more positive feel and effect when the brakes are applied. Presumably the bite point changes? If it doesn't then the QR is pretty pointless :-) Campy Record Ergo levers have the QR in the lever, which doesn't change the contact point. The Shimano 600 brakes have the QR on the caliper, so your point is valid, just not universal. I'm with Andrew - the bite point will have moved so the lever is closer to the bars when you hit it, and your hands are stronger at that point than further out. -- Joe Riel |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
New brake pads too close to rim | Iain Dalton | Techniques | 29 | August 6th 06 01:42 PM |
Brake Pads for Carbon Rims | dgarry | Australia | 6 | June 15th 06 05:17 AM |
Brake pads eating rims? | [email protected] | Techniques | 27 | July 29th 05 07:44 PM |
FS: Dura Ace Cork Pads for Carbon Rims NEW | Bikeparts | Marketplace | 0 | December 1st 04 03:53 AM |
best pads for ceramic rims? | serg | Techniques | 3 | September 17th 04 05:38 AM |