Adding a front disc to a road bike !! And Now Hydro!

Workshop tales, trials and disasters.
Maintenance tips, techniques and myths.
Technical discussion, description and outright lies

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Hotdog » Thu May 24, 2012 10:53 am

MichaelB wrote:I'm looking at using a set of these rims to build a set around some Circus Monkey hubs that are on their way. The rear hub is their new CX one that is 130mm OLN.

If things work out right, they'll be as close as %^&* is to swearing at 1,400g.

The rims themselves are USD $384 shipped per pair. It's either those MTB rims or some 38mm deep carbon clinchers that come in at 60g per rim more.


Nice, very nice. Perhaps I should re-think my idea of cannibalising my current wheels after all. I'd have to check the numbers but I have a feeling that with disc-compatible wheels as light as that then I might be able to do the front disc brake conversion and actually end up with a lighter bike overall instead of a slightly heavier one! Not that I actually care about a few hundred grams either way but it's impressive that it may be possible, and for around $1k all up (fork, brake and wheels).

Sent from my GT-P6800 using Tapatalk 2
2010 Bacchetta Carbon Aero 2.0 (700c) custom
2006 Bacchetta Giro 26 (700c) customised
Strava profile
User avatar
Hotdog
 
Posts: 928
Joined: Thu Sep 28, 2006 11:00 am
Location: North Strathfield, Sydney

by BNA » Thu May 24, 2012 2:21 pm

BNA
 

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Thu May 24, 2012 2:21 pm

I've got the drawings for the CM hubs, and I'll post some pics when they arrive.

Note that the rear hub is 130mm OLN and is only available as 32 hole (red or black) at the moment. Comes in at 240g for the rear hub.

Image
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby baabaa » Sat Jun 09, 2012 9:56 am

Doppelmoppel anyone?
Looks good to me.
The long-awaited mechanical-hydraulic converter has arrived!
Trickstuff brings drop bars and hydraulic disc brakes together
At last it’s possible to combine drop handlebars and brake shift lever with high-performance, weather-proof and finely responsive disc brakes.

http://www.trickstuff.de/en/products/Doppelmoppel.php
User avatar
baabaa
 
Posts: 311
Joined: Sun Apr 19, 2009 8:47 am

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Sat Jun 09, 2012 1:15 pm

baabaa wrote:Doppelmoppel anyone?
Looks good to me.
The long-awaited mechanical-hydraulic converter has arrived!
Trickstuff brings drop bars and hydraulic disc brakes together
At last it’s possible to combine drop handlebars and brake shift lever with high-performance, weather-proof and finely responsive disc brakes.

http://www.trickstuff.de/en/products/Doppelmoppel.php


Very similar in style & execution to the TRP Parabox setup. One thing I like is the cable entry design, but doesn't appaer to be able to cope with the typical Aussie brake configuration, whilst the TRP can be "massaged" to make work. Not a huge issue, but still.

Interesting though is the weight is almost the same as the TRP Parabox, but does so with a 140mm rear disc (vs the Parabox 160mm).

Pricewise, the Doppelmoppel master cylinder only is 310 Euro (incl tax) and the full setup (ala Parabox) is 690 Euro (incl 19% VAT). Bloody expensive !!

Interesting though to see them pushing ahead with this even in the face of the Di2 setups from TRP & Formula.

Thanks for the info baabaa
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Mulger bill » Sat Jun 09, 2012 1:41 pm

MichaelB wrote:Very similar in style & execution to the TRP Parabox setup. One thing I like is the cable entry design, but doesn't appaer to be able to cope with the typical Aussie brake configuration, whilst the TRP can be "massaged" to make work. Not a huge issue, but still.


Just wondering... Could you swap the hoses over on exit from the unit to give right hand front braking? Crappy work 'puter won't let me see the site :roll:
...whatever the road rules, self-preservation is the absolute priority for a cyclist when mixing it with motorised traffic.
London Boy 29/12/2011
User avatar
Mulger bill
Super Mod
Super Mod
 
Posts: 25866
Joined: Sun Sep 24, 2006 2:41 pm
Location: Sunbury Vic

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby baabaa » Sat Jun 09, 2012 2:57 pm

Crappy work 'puter won't let me see the site
Try moving your mouse to the letters in blue starting with http://www . and then with your pointer finger, and this is the important bit, click the left button on your mouse.
User avatar
baabaa
 
Posts: 311
Joined: Sun Apr 19, 2009 8:47 am

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Mulger bill » Sat Jun 09, 2012 7:54 pm

Wish it was that easy. Blocks frugalrouleur results too :roll:
...whatever the road rules, self-preservation is the absolute priority for a cyclist when mixing it with motorised traffic.
London Boy 29/12/2011
User avatar
Mulger bill
Super Mod
Super Mod
 
Posts: 25866
Joined: Sun Sep 24, 2006 2:41 pm
Location: Sunbury Vic

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Tue Jun 12, 2012 8:28 am

Mulger bill wrote:
MichaelB wrote:Very similar in style & execution to the TRP Parabox setup. One thing I like is the cable entry design, but doesn't appaer to be able to cope with the typical Aussie brake configuration, whilst the TRP can be "massaged" to make work. Not a huge issue, but still.


Just wondering... Could you swap the hoses over on exit from the unit to give right hand front braking? ....


This could be a simple solution, but would require bleeding afterwards. Not that that is a major issue.

One thing I did like is that you have the option of using your calipers (as long as the cylinder sizing is right). Still expensive though.
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Wed Jun 20, 2012 7:32 pm

ENVE have now added a road version of their disc fork to the range.

Weight is 438g with uncut steerer,had a A2C height of 367mm, and rake of 43mm, all for the paltry sum of US$487.

Bike Rumour article - http://www.bikerumor.com/2012/06/18/enve-composites-adds-road-2-0-disc-brake-fork/

Some pretty pics comparing Road and CX versions

Image
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby jasonc » Wed Jun 20, 2012 8:32 pm

MichaelB wrote:ENVE have now added a road version of their disc fork to the range.

Weight is 438g with uncut steerer,had a A2C height of 367mm, and rake of 43mm, all for the paltry sum of US$487.


forgive my ignorance - so could you get a standard road bike frame and put the fork on in place of whatever is there?
and how would a standard frame go with a rear disc?
Image
jasonc
 
Posts: 6063
Joined: Thu Feb 24, 2011 2:40 pm
Location: Brisbane

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Hotdog » Wed Jun 20, 2012 8:37 pm

MichaelB wrote:ENVE have now added a road version of their disc fork to the range.

Weight is 438g with uncut steerer,had a A2C height of 367mm, and rake of 43mm, all for the paltry sum of US$487.

Bike Rumour article - http://www.bikerumor.com/2012/06/18/enve-composites-adds-road-2-0-disc-brake-fork/
]


It's a very nice looking fork, shame it'll only be available with a tapered steerer though. I'd need something in 1 1/8" straight steerer.
2010 Bacchetta Carbon Aero 2.0 (700c) custom
2006 Bacchetta Giro 26 (700c) customised
Strava profile
User avatar
Hotdog
 
Posts: 928
Joined: Thu Sep 28, 2006 11:00 am
Location: North Strathfield, Sydney

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Hotdog » Wed Jun 20, 2012 10:23 pm

jasonc wrote:forgive my ignorance - so could you get a standard road bike frame and put the fork on in place of whatever is there?


More or less. It is a little longer than the average road fork so depending on what the rake is it might change the steering trail a touch, but any change would be a fair bit less than you'd get from switching to a cyclocross disc fork instead. Obviously you'd also need the brake to go with it, and a new front wheel with a disc brake compatible hub.

and how would a standard frame go with a rear disc?


Adaptors have been made for fitting rear disc brakes to frames that weren't made with disc brake mounts but that's a bit of kludge and it's questionable whether it's worthwhile. After all it's the front brake that's most important. I think until road bike frames with rear disc brake mounts are readily available most road bike disc brake users will settle for a front disc brake and rear rim brake.
2010 Bacchetta Carbon Aero 2.0 (700c) custom
2006 Bacchetta Giro 26 (700c) customised
Strava profile
User avatar
Hotdog
 
Posts: 928
Joined: Thu Sep 28, 2006 11:00 am
Location: North Strathfield, Sydney

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby jasonc » Thu Jun 21, 2012 7:11 am

Hotdog wrote:
jasonc wrote:forgive my ignorance - so could you get a standard road bike frame and put the fork on in place of whatever is there?


More or less. It is a little longer than the average road fork so depending on what the rake is it might change the steering trail a touch, but any change would be a fair bit less than you'd get from switching to a cyclocross disc fork instead. Obviously you'd also need the brake to go with it, and a new front wheel with a disc brake compatible hub.

and how would a standard frame go with a rear disc?


Adaptors have been made for fitting rear disc brakes to frames that weren't made with disc brake mounts but that's a bit of kludge and it's questionable whether it's worthwhile. After all it's the front brake that's most important. I think until road bike frames with rear disc brake mounts are readily available most road bike disc brake users will settle for a front disc brake and rear rim brake.


ta for the info. now to save my pennies. hopefully by the time it comes to buy i can afford a disc-braked road bike that weighs around 8kgs
Image
jasonc
 
Posts: 6063
Joined: Thu Feb 24, 2011 2:40 pm
Location: Brisbane

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Thu Jun 21, 2012 9:58 pm

jasonc wrote:
MichaelB wrote:ENVE have now added a road version of their disc fork to the range.

Weight is 438g with uncut steerer,had a A2C height of 367mm, and rake of 43mm, all for the paltry sum of US$487.


forgive my ignorance - so could you get a standard road bike frame and put the fork on in place of whatever is there?
and how would a standard frame go with a rear disc?


If you look at the start of the thread, that's exactly what was done to a carbon roadie. Front disc only, but it worked a treat and there are even more options available now than when I did it to start with.

Don't worry about the weight, decent braking in all weather is MUCH more important !!!! :mrgreen: :mrgreen:
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby cooperplace » Fri Jun 22, 2012 11:52 pm

jasonc wrote:
MichaelB wrote:ENVE have now added a road version of their disc fork to the range.

Weight is 438g with uncut steerer,had a A2C height of 367mm, and rake of 43mm, all for the paltry sum of US$487.


forgive my ignorance - so could you get a standard road bike frame and put the fork on in place of whatever is there?
and how would a standard frame go with a rear disc?



the rear is completely unimportant in braking: when you're at the limit of what the front can do, the rear wheel is barely touching the ground; re your second Q, yes, I swapped a disc fork into my frame, you can too.

Disc brakes will give you for the first time decent braking in the wet: this is vital
Please be nice to me, I'm not very bright.
cooperplace
 
Posts: 288
Joined: Sat Sep 12, 2009 11:42 pm
Location: Adelaide

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Mulger bill » Sat Jun 23, 2012 12:23 am

cooperplace wrote:Disc brakes will give you for the first time decent instant braking in the wet: this is vital


Edited for absolute truth :wink:
...whatever the road rules, self-preservation is the absolute priority for a cyclist when mixing it with motorised traffic.
London Boy 29/12/2011
User avatar
Mulger bill
Super Mod
Super Mod
 
Posts: 25866
Joined: Sun Sep 24, 2006 2:41 pm
Location: Sunbury Vic

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby twizzle » Tue Jun 26, 2012 1:16 pm

toolonglegs wrote:Show me a car with cable operated mechanical brakes please... apart from drum activated hand brakes.


I never said cable, I said mechanical.

Linky.

Edit: I think they might be wrong in that description anyway, hydraulic brakes had been around for nine years at that point and everyone had switched as it got around the problem of uneven braking with rod/cable systems. But the point was that vacuum boosters are a mechanical system, they do not require hydraulics.
I ride, therefore I am.
...real cyclists don't have squeaky chains...
User avatar
twizzle
 
Posts: 6382
Joined: Wed Aug 13, 2008 11:45 am
Location: Taking a break.

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Hangdog98 » Wed Jun 27, 2012 4:09 pm

One for the tinkerers. Sorry if this has been covered before gentlemen but a word of caution when building up your road bike with a rear disc and a 130mm OLD. Specifically having your frame builder weld on some disc tabs to your trusty Alu or Steel road frame. The current crop of ISO disc hubs at 130mm OLD will accept a common 160mm disc rotor but many will find that the edge of the rotor will touch the stays where they taper in. It might be best practice to present an MTB disc wheel to the dropouts to see what clearance you have before lighting the torch (yes, remove the cone locknuts to get it to fit in for this test). On my build I used a 145mm rotor which cleared the stays by 2/3 of a poofteenth. A 160mm rotor would NOT have fit. Now, when using a 145mm rotor, the disc tabs welded to the frame are in a different spot. Keep that in mind.
User avatar
Hangdog98
 
Posts: 81
Joined: Mon Jun 13, 2011 11:54 pm
Location: Sydney, the REAL capital

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Nobody » Mon Jul 16, 2012 10:12 pm

For those who missed it, a Roubaix model is coming out with discs:
http://www.bikerumor.com/2012/07/10/201 ... baix-disc/
Image
Nobody
 
Posts: 6647
Joined: Thu Sep 18, 2008 12:10 pm
Location: Sydney

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Tue Jul 17, 2012 9:58 am

Looks nice (apart from the rear seat stays), but still reckon the Volagi is a better looking bike.

Will be interesting to compare them fro weight, spec and price side by side.

Apparently the new Volagi Liscio is 135mm rear spacing (as is the Spesh) and is hydraulic ready (what that actually means is not clear)

So who is going to be the next big manufacturer to bring out a disc roadie ....

Muppets still can’t spell Specialised though ..... :roll:
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby baabaa » Tue Jul 17, 2012 3:11 pm

And in case this one has been missed....Review: Volagi Liscio disc-brake road bike

http://www.bicycletimesmag.com/content/ ... -road-bike
User avatar
baabaa
 
Posts: 311
Joined: Sun Apr 19, 2009 8:47 am

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby Mulger bill » Wed Jul 18, 2012 12:59 am

MichaelB wrote:...and is hydraulic ready (what that actually means is not clear)

At a guess the frame would have those saddle type braze ons that the hydro line clips to.
...whatever the road rules, self-preservation is the absolute priority for a cyclist when mixing it with motorised traffic.
London Boy 29/12/2011
User avatar
Mulger bill
Super Mod
Super Mod
 
Posts: 25866
Joined: Sun Sep 24, 2006 2:41 pm
Location: Sunbury Vic

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Wed Jul 18, 2012 6:53 am

Mulger bill wrote:
MichaelB wrote:...and is hydraulic ready (what that actually means is not clear)

At a guess the frame would have those saddle type braze ons that the hydro line clips to.


That would make it similar to the Kona, but you cant see from the pic !!
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby The 2nd Womble » Wed Jul 18, 2012 8:26 am

Record 11sp disc braked carbon roadie anyone??? :D

viewtopic.php?f=9&t=54432
The only good Cyclist is a Bicyclist

Huge fan of booted RGers who just can't help themselves
User avatar
The 2nd Womble
 
Posts: 3058
Joined: Wed Jul 27, 2011 1:21 pm
Location: Brisbane

Re: Adding a front disc to a road bike !! And Now Hydro!

Postby MichaelB » Fri Jul 20, 2012 11:16 am

The 2nd Womble wrote:Record 11sp disc braked carbon roadie anyone??? :D

viewtopic.php?f=9&t=54432


I'm somewhat torn between either getting a Volagi, getting one of them Chinese Carbon CX framesets or waiting a bit longer. I can't stand the Spesh (spelling and those rear stays - :roll: I know, fashion victim) or going for something like the Lynskey.

The SRAM Hydro groupset may have a big influence ....
User avatar
MichaelB
 
Posts: 6831
Joined: Tue Feb 20, 2007 8:29 am
Location: Adelaide, South Australia

PreviousNext

Return to The Shed

Who is online

Users browsing this forum: No registered users



Popular Bike Shops
Torpedo 7 Torpedo7 AU
Ground Effect Ground Effect NZ
Chain Reaction Cycles CRC UK
Wiggle Wiggle UK
Ebay Ebay AU

“Bicycles BNA Twitter
“Bicycles BNA Facebook
“Google+ BNA Google+
“Bicycles BNA Newsletter

> FREE BNA Stickers
> BNA Cycling Kit