|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
Feeling somewhat unsatisfied with the V-brake setup on my cyclocross
forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? So far I can think that the mechanical variety are probably cheaper and easier to fix/adjust at the road-side whereas the hydraulic sort have more bling and stopping power (maybe - don't know why?) Also, any recommendations for a 100mm front fork with ISO disc tabs? So far I've found Winwood and Airborne Aeileron - but both are US based and don't seem to any stockists in the UK http://www.jensonusa.com/store/produ...ross+Fork.aspx http://www.fixedgeargallery.com/2006/nov/JasonElias.htm Many thanks, Duncan. |
Ads |
#2
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
On Thu, 15 Feb 2007 05:50:25 -0800, Duncan Smith wrote:
Feeling somewhat unsatisfied with the V-brake setup on my cyclocross forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? Go to rec.bicycles.tech and find the thread "Mechanical disk brake" started on Tuesday this week. Mike |
#3
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
On Feb 15, 2:03 pm, Mike Causer
wrote: On Thu, 15 Feb 2007 05:50:25 -0800, Duncan Smith wrote: Feeling somewhat unsatisfied with the V-brake setup on my cyclocross forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? Go to rec.bicycles.tech and find the thread "Mechanical disk brake" started on Tuesday this week. Mike Thanks :-) |
#4
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
Duncan Smith wrote:
Feeling somewhat unsatisfied with the V-brake setup on my cyclocross forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? So far I can think that the mechanical variety are probably cheaper and easier to fix/adjust at the road-side whereas the hydraulic sort have more bling and stopping power (maybe - don't know why?) My mech/hydraulic comparison is rim brakes rather than discs, but I've found that... Absolute power isn't actually much of an issue. If you bother fettling mech brakes you can lock the wheels up anyway, and if you can do that then any extra power is moot. What the hydraulics give is a simple in/out pad motion that means that fettling is (a) far less necessary to start with and (b) *much* easier to do, and much easier control with fingertip pressure rather than a monster squeeze of the hand. Hydraulic rim brakes will fit on existing V-bosses, but you'll be lucky to find levers that work on drops since Magura discontinued the HS 66 :-( Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net http://www.dundee.ac.uk/~pjclinch/ |
#5
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
Hydraulic rim brakes will fit on existing V-bosses, but you'll be lucky to find levers that work on drops since Magura discontinued the HS 66 :-( Agreed, the normal drop style lever didn't really pull enough wire for the v-brake, I was thinking of mounting a more conventional mtb style lever on the bottom of the drop bars (near where the bar end plug goes). A bit like this guy's got (except he's got bull bars not drop bars, but same thing I reckon..) http://www.fixedgeargallery.com/2006/nov/ JasonElias.htm Any tips for a suitable lever? - my drop bars are over-sized apparently. Thanks, Duncan. |
#6
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
"Duncan Smith" a écrit:
I was thinking of mounting a more conventional mtb style lever on the bottom of the drop bars (near where the bar end plug goes). A bit like this guy's got (except he's got bull bars not drop bars, but same thing I reckon..) http://www.fixedgeargallery.com/2006/nov/JasonElias.htm Any tips for a suitable lever? - my drop bars are over-sized apparently. Generally when drop bars are referred to as oversized, the oversized part is the stem clamp - 31.8mm or thereabouts. Most drop bars have a diameter of around 15/16" (23.8mm) in the part to which the brake levers clamp. That's far enough from the straight bar standard of 7/8" (22.2mm) that mountain bike levers don't work well on drop bars. It's sometimes possible to bodge the clamp, but it's generally not a nice solution. The lever in the picture is a Tektro cross lever, designed to be used as a secondary lever on drops (and therefore with a 23.8mm clamp), and the Avid mechanical brake is the only one I know of that comes in a version designed to work with drop bar cable pull. What gear controls are you currently using? Will you want to keep your brake hoods? James Thomson |
#7
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
in message .com, Duncan
Smith ') wrote: Feeling somewhat unsatisfied with the V-brake setup on my cyclocross forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? Remember that all bicycle brakes are essentially disk brakes. With rim brakes the disk is bigger and the tyre is attached to it... If you use a separate brake disk, it's further from the mud so unless conditions are truly atrocious it doesn't get contaminated. Against this, it's smaller so has less radiant area to dissipate energy as heat (but at least the heat doesn't go into your tyres). Apart from the mud issue, disk brakes are less, not more, effective than rim brakes, because of poorer leverage and less radiant surface. So far I can think that the mechanical variety are probably cheaper and easier to fix/adjust at the road-side whereas the hydraulic sort have more bling and stopping power (maybe - don't know why?) Not more stopping power - more sensitivity, more precise control. This really matters for technical mountain biking but probably doesn't matter very much for cross. -- (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; All in all you're just another nick in the ball -- Think Droid |
#8
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
Duncan Smith wrote on 15/02/2007 13:50 +0100:
So far I can think that the mechanical variety are probably cheaper and easier to fix/adjust at the road-side whereas the hydraulic sort have more bling and stopping power (maybe - don't know why?) Power isn't the issue IMO. Its the much better modulation of power you get with hydraulic discs which give you much better control over your stopping especially when things are slippy. -- Tony "...has many omissions and contains much that is apocryphal, or at least wildly inaccurate..." Douglas Adams; The Hitchhiker's Guide to the Galaxy |
#9
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
The lever in the picture is a Tektro cross lever, designed to be used as a secondary lever on drops (and therefore with a 23.8mm clamp), and the Avid mechanical brake is the only one I know of that comes in a version designed to work with drop bar cable pull. What gear controls are you currently using? Will you want to keep your brake hoods? Thanks James, that's good info.. Looks like the Tektro lever with the avid mech. brakes would be a good combo. Do you have a link to the avid brakes designed to work with the lever? My bike's a fixie so no gear controls to worry about! The brake hoods is a good question - I don't usually run a rear brake, though I may change my mind after tuesday's ride in the wet... I use them for pulling up on when climbing hills a lot though. It would be tidier if I could remove the levers from the hoods, but they don't seem designed to be removed easily (Tektro). Maybe you can buy some hoods without levers...? Thanks, Duncan. |
#10
|
|||
|
|||
Pros and cons of mechanical vs hydraulic disc brakes?
Simon Brooke wrote:
in message .com, Duncan Smith ') wrote: Feeling somewhat unsatisfied with the V-brake setup on my cyclocross forks I'm contemplating disc brakes as a solution and am wondering what the relative merits of hydraulic vs mechanical are? Remember that all bicycle brakes are essentially disk brakes. With rim brakes the disk is bigger and the tyre is attached to it... If you use a separate brake disk, it's further from the mud so unless conditions are truly atrocious it doesn't get contaminated. Against this, it's smaller so has less radiant area to dissipate energy as heat (but at least the heat doesn't go into your tyres). Apart from the mud issue, disk brakes are less, not more, effective than rim brakes, because of poorer leverage and less radiant surface. Apart from the fact that they're made with material specific to the purpose of braking, which allows them to run truer, be harder, more conductive of heat, and use much more abrasive pads, all of which adds up to a great improvement in efficacy over rim brakes, IME. A |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Mechanical Disc Brakes | Mike Kennedy | Mountain Biking | 4 | September 8th 04 11:45 PM |
mechanical disc brakes | Operator | Mountain Biking | 3 | July 21st 04 02:44 PM |
Mechanical Disc Brakes | John Appleby | Mountain Biking | 8 | September 25th 03 12:45 AM |
Mechanical disc brakes and hub | Piotrek S. | Mountain Biking | 17 | September 22nd 03 11:23 AM |
Opinions on Hayes HMX-1 Mechanical Disc Brakes? | David L | Mountain Biking | 2 | June 27th 03 12:12 AM |