Grandson Bike Cam Mechanism Questions, Please
Hi,
My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? Much thanks, Bob |
Grandson Bike Cam Mechanism Questions, Please
For your reference, records indicate that
Bob wrote: Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? Every set of brakes I’ve ever owned has had an lever that opened them wide enough to pass the tire. Sometimes it doubles as the adjuster for pad wear. Don’t know if kids bikes are so thoughtfully engineered these days, though. b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? Serving what purpose? I can’t recall ever seeing one. -- "Also . . . I can kill you with my brain." River Tam, Trash, Firefly |
Grandson Bike Cam Mechanism Questions, Please
Bob wrote in :
Hi, My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? Bob, this is not the best group for such a query. You had best try rec.bicycles.tech, where there are some very sensible bicycle enthusiasts and mechanics. You may be missing some measure, such as a quick release, that allows you to open the brakes more widely for maintenance. Please be prepared to specify the type or model of brake, or to post photos to something like flickr. -- Andrew Chaplin SIT MIHI GLADIUS SICUT SANCTO MARTINO (If you're going to e-mail me, you'll have to get "yourfinger." out.) |
Grandson Bike Cam Mechanism Questions, Please
On 5/7/2017 5:39 PM, Andrew Chaplin wrote:
Bob wrote in : Hi, My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? Bob, this is not the best group for such a query. You had best try rec.bicycles.tech, where there are some very sensible bicycle enthusiasts and mechanics. You may be missing some measure, such as a quick release, that allows you to open the brakes more widely for maintenance. Please be prepared to specify the type or model of brake, or to post photos to something like flickr. Or, for your typical 16" or 20" sidewalk bike, just remove one brake shoe. Usually the one not on the cable side is quicker. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
Grandson Bike Cam Mechanism Questions, Please
On 5/7/2017 3:07 PM, Bob wrote:
Hi, My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. That's known as a Quick Release axle. Make sure you know how to operate it. It's very common for people to use it wrong, think it's tight enough, and crash because of it. See http://www.bicyclinglife.com/HowTo/UseAQuickRelease.htm But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? What type of brake are you dealing with? If this type: https://www.sheldonbrown.com/canti-direct.html you can open the brakes easily by unhooking the noodle. See the fourth photo down, not counting Sheldon's smiling face. If it's a different type of brake, it may have a little quick release lever somewhere in the brake system. If not, it's possible to add a brake quick release to most types. Talk to your local bike shop. BTW, this is a good source of info for lots of bike mechanical questions: http://www.parktool.com/blog/repair-help/ b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? No. You want the little teeth on the quick release bits to get a good grip direction on the fork dropouts. The "dropouts" are the bits at the end of the fork that perch on the axle. -- - Frank Krygowski |
Grandson Bike Cam Mechanism Questions, Please
On Sunday, May 7, 2017 at 3:07:13 PM UTC-4, Bob wrote:
Hi, My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? Bob, you lucked out and should disregard my previous post. I did not realize that Andrew and Frank were monitoring this group. -- Andrew Chaplin SIT MIHI GLADIUS SICUT SANCTO MARTINO. |
Grandson Bike Cam Mechanism Questions, Please
On 5/7/2017 8:11 PM, Frank Krygowski wrote:
On 5/7/2017 3:07 PM, Bob wrote: Hi, My Grandson got a new bike, and thought I'd ask you experts some questions that have come up. I have to admit I know nothing about "bike mechanics," and would be most grateful for the help. a. Regarding the cam-lock that holds the wheel to the fork: Clever gadget. That's known as a Quick Release axle. Make sure you know how to operate it. It's very common for people to use it wrong, think it's tight enough, and crash because of it. See http://www.bicyclinglife.com/HowTo/UseAQuickRelease.htm But, the only way it seems to take the wheel completely off is to deflate it. Otherwise, we can't get it passed the brake pads. Are the brake pads, in their relaxed position, supposed to be wide enough to allow the tire to be passed thru them, easily ? Or,...? What type of brake are you dealing with? If this type: https://www.sheldonbrown.com/canti-direct.html you can open the brakes easily by unhooking the noodle. See the fourth photo down, not counting Sheldon's smiling face. If it's a different type of brake, it may have a little quick release lever somewhere in the brake system. If not, it's possible to add a brake quick release to most types. Talk to your local bike shop. BTW, this is a good source of info for lots of bike mechanical questions: http://www.parktool.com/blog/repair-help/ b. Is there supposed to be a flat washer between the bike fork's cutout, and the cam mechanism ? On the cam side ? On the Nut side ? No. You want the little teeth on the quick release bits to get a good grip direction on the fork dropouts. The "dropouts" are the bits at the end of the fork that perch on the axle. That was supposed to be "_directly_ on the fork dropouts." -- - Frank Krygowski |
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