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Braking Issues(9 posts)

Braking IssuesMTJ
Apr 8, 2003 10:21 AM
I'm a big guy (around 260 at the moment) and I'm looking to get more braking performance out of my 'cross bike. I'm running Avid Shortys (with Ritchey pads) with 105 levers and am considering three options:

1) New Pads and/or readjusting my straddle cable

2) A V-brake (with adapter) for the front wheel

3) A disc brake for the front wheel

My concerns are these: will I get any more power out of the v-brake than the Avids? If so, what happens to lever feel? I keep reading that the road discs are mushy and hard to modulate - anyone with any experience there? Also, is it worth the cash? I'm looking at a new fork and front wheel if I do this.

Any help will be greatly appreciated (I'm usually posting answers on the mountain bike site but I fully admit to being a newbie on the cyclocross side).
re: Braking Issuesatpjunkie
Apr 8, 2003 11:40 AM
I'm 230 and running Spooky's with long straddle. have plenty of pucker. I don't know if straddle length helps with Avids, it does for all Mafac Style Brakes (Spooky, Paul Neo Retro, Froggleggs, etc..) anyone know out there? Vee with travel agent will help and is far cheaper than disc.
How long a straddle & how wide the saddle?triangleforge
Apr 9, 2003 9:22 AM
Don't know if you can post a picture, but I'd be much obliged! I'm still futzing with my Spookys to find an ideal set-up.

If a picture's not possible, about how high is your straddle hanger in relation to the bottom headset cup on the front?

any other tuning tricks would be appreciated.

Cheers!
this is interesting...Steve_O
Apr 9, 2003 9:35 AM
It's been posted before but read what Sheldon has to say about "Wide Profile" brakes like Mafacs (and your spookys and my Radius brakes ;-)

http://www.sheldonbrown.com/cantilever-geometry.html

On my Radius brakes I just went to the really long straddle cable arrangement ala Pauls setup (pict from their website below).



This seemed to improve the braking power quite a bit with the Radius Brakes.
How long a straddle & how wide the saddle?atpjunkie
Apr 9, 2003 12:04 PM
about 1.5 inches over the bottom cup more or less. I'll try to take some pix. One set I have spooky circular hanger, other running tridangle. I haven't noticed much diff. Salsa hanger could be good as well.
Salsa has a new straddle cable hanger...Nater
Apr 8, 2003 12:42 PM
that is wider than the average (50mm) and might improve the mushy feeling that often happens with road levers and cantilever brakes. Might be an inexpensive place to start. I'd definitely start with that or readjust your straddle cable before spending all that money on a new wheel/fork/disc combo.
Discs are better.......Dan Cas
Apr 8, 2003 4:03 PM
Than anything else.I've tried Avids,Pauls,V-brakes with pull adapters,Mini V'a with and without adapters, and none are close to the Avid road disc brakes.Wet,dry,snow,ice,no chatter,no matter.
V brakes stop pretty good,but they need set up close to the rim and therefor have little mud clearance and often rub the rims when the wheel flexes.
This said,I'm probably going back to the Pauls.I have 5 sets of non-disc wheels so I can keep touring tires,worn knobbies,fresh knobbies,full 38mm mud tires,and a set of skinnies on,and I hate to give this up or build 4 more wheel sets.I'm sure it matters,but I honestly can't feel the additional weight difference of disc brakes when riding.

I "only" weigh 200,so I don't need the brakes you do.

Hope this helps,Dan
Salsa hanger looks promising!Steve_O
Apr 9, 2003 10:04 AM
I'm not a mechanical engineer (just play one on the Internet) but I understand that you get maximum torque at 90 degrees. On brakes like Mafacs, NeoRetros, and Spookys this means that the straddle cable is closer to 90 degrees with the Salsa Hanger then a traditional hanger. More Torque should equate to more stopping power.

Pict of Salsa Hanger


Hopefully a drawing explains my thoughts better...
Thanks everyoneMTJ
Apr 9, 2003 10:48 AM
I'll give that Salsa hanger a shot until I can afford the disc upgrade. I'm hoping to get a new disc-compatible frame this fall, but until then this looks promising.

Thanks again.