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-   -   Upgrading to hydraulic brakes (http://www.bikeforums.net/general-cycling-discussion/923128-upgrading-hydraulic-brakes.html)

2jzsupragte 11-21-13 01:27 PM

Upgrading to hydraulic brakes
 
Hello everyone
I have bike Xplorer range 370 with fork SR Suntour CW10-XCCT
so i can install hydraulic disc brakes on rear wheel
but on front wheel my fork is too narrow so question is can i spread a fork a little bit just for a 1 cm to make it wider so disc can fit
i don't have money to buy now fork and i love to customize things instead of buying new i hope you get it
And that fork doesnt support disc brake hangers so i have to drill holes to make it i hope i can do that becouse i don't want to break fork under lot of stress
Sorry for my english.

demoncyclist 11-21-13 02:02 PM

You can't put disc brakes on that bike. The fork and frame aren't designed to mount the calipers, and you would have to replace the wheels as well. If you are convinced that you need disc brakes, you need to get a different bike.

fietsbob 11-21-13 03:58 PM

OTOH, a set of wheels with Drum brakes can be retrofitted , to an existing bike.

because the torque is transferred with a Band bolted around the fork blade, and rear of the chainstay.


http://www.sturmey-archer.com/produc...d/1/id/54.html


If there is V brake Bosses Magura's HS33 hydraulic rim-brakes are excellent.

dynaryder 11-21-13 04:40 PM

Drilling holes in the fork to mount a disc caliper is a BAD IDEA. As in,do not do it.

From the pics I could find,it looks like you have a rear caliper mount on the frame. So if you swap the fork and wheels(or just have the wheels rebuilt with disc hubs),you can put discs on there. But you'd really do better just getting a bike with discs already.

2jzsupragte 11-22-13 05:28 AM

Thank you for replies...
But i really need disc brakes becouse i ride this bike so much downhill (on asphalt) to the beach so v brake pads wear out fast
but the bike itself is really lightweight so if i change fork or even buy new bike it will be heavier
how would i go back uphill thats a lot of miles :D
I don't know should i weld caliper mount on front ?!

P.S. i just saw this http://www.pedalchopper.com/performa...caliper-mount/ so i can mount it on front fork ?!

BlazingPedals 11-22-13 07:00 AM

Personally, I think putting a mechanical disc brake on the rear would be stretching the envelope considering the value of the bike. The phrase, "making a silk purse out of a sow's ear" comes to mind.

2jzsupragte 11-22-13 07:54 AM

Well what the heck i will figure out something i just know when comes to mechanic you can do everything so
thank you all :)

Little Darwin 11-22-13 09:04 AM

Once you invest the $33 cost of the improvised mount, plus the costs of the hubs, rotors, calipers, brake levers and hoses you will still have disc brakes on a bike that wasn't made for disc brakes. It will also be heavier than it is now. Do you really want to do that just to avoid replacing brake pads? Also, if your brake levers and shifters are integrated, you will have to replace the shifters (along with the brake levers) unless you go with mechanical discs.

I don't know where you are, or what is available to you, but you can get a disc brake equipped bike pretty affordably online. Since you describe only on road riding, I would suggest looking at the bikes with rigid forks to save weight.

If you are set on keeping your bike... Well, instead of tinkering with a make shift mount I would replace the fork with a disc ready suspension compensated rigid fork and you will probably lose some of the weight that you are going to gain by putting disc brakes on the bike. On a quick search, I saw a fork that would work (if your bike has a 1 1/8" threadless headset) for $65. http://www.universalcycles.com/shopp...3&category=703 It is about a pound lighter than a random Suntour fork I found on a search. You should ask around and determine if a suspension compensated fork is necessary in your case, since your fork only has 63mm of travel... a non-suspension corrected fork might actually be a better fit. You can probably also find a better price on a fork if you spend some time looking around... The extra $30 or so is better than trusting your life to a makeshift attachment. If cost is no object, you could go with a carbon fork with disc tabs and save even more weight. :)

Also, I have found that a non-suspension fork is better for hill climbing on pavement because you don't lose power by bouncing the front suspension. It also handles better. I have done the swap, but did not go with disc brakes, I just got rid of the pogo stick, and kept everything else the same.

Good luck!

Little Darwin 11-22-13 09:09 AM

Also, disc brake pads don't last forever either. :)

fietsbob 11-22-13 10:33 AM

Drum brake shoes life span will be nearly like yours in their wear life..

2jzsupragte 11-23-13 12:07 PM

Well, thank you all but maybe i will buy a new fork which have disc mount tab already, so now question is, can my bike frame hold out more stress with disc when i brake downhill

BlazingPedals 11-23-13 01:41 PM

I'm not familiar with the brand; but I can pull up a pic and specs. It looks like it has a 7-speed freewheel, which tells me it came from a dept store because freewheels have been obsolete for 20 years. I just question if buying the gear to convert it to disc -- new wheel, disc, and fork - call it $300, is a smart move. If you convert both wheels, you could easily have a $200 bike that you just spent $500 more to upgrade. Better in that case to buy a new $500 bike that already has discs.

Elvo 11-23-13 04:27 PM

Just buy this:
http://www.nashbar.com/bikes/Product...53_-1___204454

Solid_Spoke 11-29-13 08:22 AM

Out of curiosity, how often are people replacing their disc pads? My Avid BB7s seem to last about 5 months before needing to be replaced. Our climate here is mostly rainy, and I am starting to think that the road grime is accelerating the wear on the pad life.

jsdavis 11-29-13 01:31 PM

Quote:

Originally Posted by Solid_Spoke (Post 16287644)
Out of curiosity, how often are people replacing their disc pads? My Avid BB7s seem to last about 5 months before needing to be replaced. Our climate here is mostly rainy, and I am starting to think that the road grime is accelerating the wear on the pad life.

Depends on how far you ride and how you ride. I replace my Deore pads (front wheel) twice a year but I have some crazy hills that I have to descend going home and I'm in an urban area so that I seldom go more than 300-500 ft between stop signs or lights. Each set of pads, I'd say I get 2000 miles or so. The BB7 on the back is still on the original pads but I only put it on a few months ago.

jimc101 11-29-13 01:46 PM

Quote:

Originally Posted by jsdavis (Post 16288300)
Depends on how far you ride and how you ride

Add to that where you ride & what conditions, most of my local off road riding, pads will last a year+, if I go to an area about 40 minutes away, which has very very gritty soil, in the wet you could be looking at 2-3 rides before the pads are significantly worn.

fietsbob 11-29-13 01:47 PM

Quote:

... how often are people replacing their disc pads?
I've taken mine out and knocked off the glazed surface (with carborundum grit 'sandpaper') once ,

think I'll pop them out and do that again.. for another winter..

but I'm Pootling around town in all weather, not bombing down mountainous singletrack.

dynaryder 11-29-13 05:18 PM

Also depends on pad material. Semi-metallic will last longer than organic(but will also be noisier).


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