Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Recreational Cyclocross and Gravelbiking This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-19-05, 05:39 PM   #1
Alexi
Senior Member
Thread Starter
 
Alexi's Avatar
 
Join Date: May 2004
Location: Boston
Bikes:
Posts: 814
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ok whats the best way to do this running truvativ rouleur cranks on a porad with a 9 speed wheel? everything I've tried looks like poo...

oh yeah the bcd is 110
Alexi is offline   Reply With Quote
Old 10-20-05, 06:47 AM   #2
jfmckenna
Tiocfáidh ár Lá
 
jfmckenna's Avatar
 
Join Date: Dec 2003
Location: The edge of b#
Bikes: A whole bunch-a bikes.
Posts: 5,440
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
For my single ring bike I just took an old derailleur and spread it out a bit more with some pliers for the lowest and highest gears. Then drop the thing right over the whole of the chain and chainring. I never ever lost a chain. I also didnt really care about the look but I guess it just looks like you have a normal double set up untill upon further inspection it's a single.
jfmckenna is offline   Reply With Quote
Old 10-20-05, 07:51 AM   #3
lunacycle
Senior Member
 
Join Date: Dec 2004
Location: St Paul, MN
Bikes:
Posts: 698
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I did this on my bike a few years ago. I substituted a Spot chainring guide for the outside chainring, then I used a Third-Eye Chainwatcher on the inside. I shortened the chain to reduce the likelihood of derailing. It ended up looking pretty good. With the chainguides on each side, you can take off the front derailleur. I've never lost a chain with this set-up.
lunacycle is offline   Reply With Quote
Old 10-20-05, 07:52 AM   #4
kbabin
Senior Member
 
kbabin's Avatar
 
Join Date: Mar 2004
Location: Fayetteville, AR
Bikes:
Posts: 279
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
3rd eye chain watcher and a ring guard?

http://www.store.yahoo.com/cyclocros...hainrings.html
kbabin is offline   Reply With Quote
Old 10-20-05, 10:37 AM   #5
lunacycle
Senior Member
 
Join Date: Dec 2004
Location: St Paul, MN
Bikes:
Posts: 698
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by kbabin
3rd eye chain watcher and a ring guard?

http://www.store.yahoo.com/cyclocros...hainrings.html
Ring guard on the outside, chainwatcher on the inside. You should have both, just as your link suggests. Remember to shorten the chain.

I think Redline makes a device similar to the Third Eye, and I believe it's only $5 or $6. That Cyclocross World Wetzikon chainguard looks similar to my Spot.
lunacycle is offline   Reply With Quote
Old 10-20-05, 01:57 PM   #6
greybeard87
Senior Member
 
greybeard87's Avatar
 
Join Date: Aug 2005
Location: Clayton, NC
Bikes: Bridgestone Mile 112 (fixie); Early 70's Bottechia; 74 Schwinn Continental; Mercier Draco AL; Corratec Freeride MTB; Custom GT Azkar SS
Posts: 286
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Chainguards get pretty pricey. I am runnin a 42T chainwheel on the center and found a cool looking drilled 46T ring from Cambria on E-Bay, ground off the teeth and have my homemade chainguard for $10.
Also run the 3rd eye watcher, seems to work well so far.
greybeard87 is offline   Reply With Quote
Old 10-20-05, 02:09 PM   #7
jfmckenna
Tiocfáidh ár Lá
 
jfmckenna's Avatar
 
Join Date: Dec 2003
Location: The edge of b#
Bikes: A whole bunch-a bikes.
Posts: 5,440
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
I hate to say it but the 3rd eye is the worst device I've ever used on my cross bike. If the chain comes off during a hard forcefull effort then you will jam the chain below the dog tooth of the 3rd eyewatcher and then it's game over. You will need a tool to unscrew the 3rd eyes hose clamp to get the chain back on. This has happened to me on two ocassions and the 3rd eye went straight into the trash. IMHO for those who have not seen this happen yet, you will. If you are going to race go with ring guards (ground off teeth works good) or a low riding derailleur.
jfmckenna is offline   Reply With Quote
Old 10-20-05, 03:37 PM   #8
jeff williams
I couldn't car less.
 
jeff williams's Avatar
 
Join Date: Nov 2003
Bikes: Ritchey P-series prototype, Diamondback, Nishiki Triathelon Pro.
Posts: 4,395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://www.dirtyparts.ca/jack.html
Or sandwich the ring both sides with a plate\gaurd.
jeff williams is offline   Reply With Quote
Old 10-20-05, 04:09 PM   #9
Lectron
Made in Norway
 
Lectron's Avatar
 
Join Date: Oct 2004
Bikes:
Posts: 1,671
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by kbabin
3rd eye chain watcher and a ring guard?

http://www.store.yahoo.com/cyclocros...hainrings.html


Works very well, but I haeven't seen a 42T 110BCD ring guard. Should be a pretty easy thing to make though.
Lectron is offline   Reply With Quote
Old 10-20-05, 04:49 PM   #10
nick burns
Senior Member
 
nick burns's Avatar
 
Join Date: Oct 2004
Location: Absecon, NJ
Bikes: Puch Luzern, Puch Mistral SLE, Bianchi Pista, Motobecane Grand Touring, Austro-Daimler Ultima, Legnano, Raleigh MountainTour, Cannondale SM600
Posts: 2,943
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If you have deep pockets, take a look into the T.A. Tevano Cyclocross Crankset. It's a beauty and a bargain at only $299.95:


http://sheldonbrown.com/harris/frenc...ks.html#bottom

Scroll about halfway down the page.
nick burns is offline   Reply With Quote
Old 10-20-05, 06:42 PM   #11
asterisk
Senior Member
 
asterisk's Avatar
 
Join Date: May 2004
Bikes:
Posts: 339
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jfmckenna
I hate to say it but the 3rd eye is the worst device I've ever used on my cross bike. If the chain comes off during a hard forcefull effort then you will jam the chain below the dog tooth of the 3rd eyewatcher and then it's game over. You will need a tool to unscrew the 3rd eyes hose clamp to get the chain back on. This has happened to me on two ocassions and the 3rd eye went straight into the trash. IMHO for those who have not seen this happen yet, you will. If you are going to race go with ring guards (ground off teeth works good) or a low riding derailleur.
I must say that I have had the same experiences with mine. Perhaps someone could explain to us how properly to set up our plastic bits?
asterisk is offline   Reply With Quote
Old 10-21-05, 09:23 AM   #12
lunacycle
Senior Member
 
Join Date: Dec 2004
Location: St Paul, MN
Bikes:
Posts: 698
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I agree that the Third Eye is a bit of a disappointment, even though I paid $1 for mine at a swap meet. Of course, a better (and more expensive) solution is a chainguard on each side of the chainring. To be fair, I've had some gnarly crashes during races, and even then I did not lose a chain. I was running a short-cage Dura Ace rear derailleur, which has really good spring tension, plus I shortened the chain as much as possible. I suspect these two elements helped to keep the chain from derailing. The trick with the Third Eye is to locate it close enough to the chainring so that the chain cannot drop below it. The elevation of the Third Eye needs to be such that in the event of a chain derailment the chain will slide down the sloped surface and back onto the ring. This takes a bit of trial and error to get right. But honestly, I have not had a single problem with it.

I tried this same set up on my mountain bike and it was a complete disaster. I attribute this to excessive chain slack due to the longer chain that's required for the long-cage derailleur and the higher gear range of the cassette.
lunacycle is offline   Reply With Quote
Old 10-21-05, 09:48 AM   #13
Surferbruce
Senior Member
 
Surferbruce's Avatar
 
Join Date: Jul 2004
Location: Los Angeles/Aveyron France
Bikes:
Posts: 5,308
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
the third eye should be called the stinky brown eye it's such a p.o.s.
the better one is the Deda dog fang.
Surferbruce is offline   Reply With Quote
Old 10-27-05, 10:53 AM   #14
borderline
Senior Member
 
borderline's Avatar
 
Join Date: May 2005
Location: North Carolina
Bikes:
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
scuse my ignorance... why not just use a front derailleur and no cable? At least it should work on the inner ring, right?
borderline is offline   Reply With Quote
Old 10-27-05, 11:37 AM   #15
lunacycle
Senior Member
 
Join Date: Dec 2004
Location: St Paul, MN
Bikes:
Posts: 698
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by borderline
scuse my ignorance... why not just use a front derailleur and no cable? At least it should work on the inner ring, right?
The front derailleur does not prevent chain derailment like the chainguards do. You would still need to operate the derailleur to guide the chain back on the chainring.
lunacycle is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 11:22 AM.