Notices
Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

2wd Mtb

Old 11-08-07, 04:01 AM
  #1  
cs1
Senior Member
Thread Starter
 
cs1's Avatar
 
Join Date: Feb 2004
Location: Clev Oh
Posts: 7,076

Bikes: Specialized, Schwinn

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 211 Post(s)
Liked 14 Times in 13 Posts
2wd Mtb

I came upon this on ebay. https://cgi.ebay.com/Jeep-Rubicon-Spo...QQcmdZViewItem
If you look closely, you can see the worm gear on left rear. The drive shaft goes through the seat stay to the top tube into the fork. Ingenious but heavy I'm sure. Anyone actually ride one?

Tim
cs1 is offline  
Old 11-08-07, 06:49 AM
  #2  
Ted Danson
Senior Member
 
Ted Danson's Avatar
 
Join Date: Jul 2006
Location: Wisconsin
Posts: 380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked 0 Times in 0 Posts
i dont understand what it does? pushes air to your fork? whats the point of having a giant piston running through the frame of your bike?
__________________
Merton Enthusiast
Ted Danson is offline  
Old 11-08-07, 07:18 AM
  #3  
streetlightpoet
Banned.
 
Join Date: Mar 2007
Location: Lexington, KY
Posts: 668

Bikes: Masi Speciale Fixed, Surly 1x1, 2 70's Bianchi folders, Swingbike, Columbia Cruiser 3 spd, Specialized Big Hit and P.2, Cove G-Spot, Xtracycled Bianchi San Jose.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
There is a company called Christini that makes the same thing. I haven't had a chance to ride one, but I would trust them more than a Jeep branded one.
streetlightpoet is offline  
Old 11-08-07, 07:48 AM
  #4  
rbrsddn
Senior Member
 
rbrsddn's Avatar
 
Join Date: Nov 2006
Location: Madison, CT
Posts: 680

Bikes: '98 Rhygin SS road,'99 Fat Chance Ti Fat, '95 Azonic Mtn bike, '88 Giant Sedona.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I don't know if Christini still makes 2wd mountain bikes, but they developed the drive for the Yamaha 2wd dirt bike I read about a year ago or so.
rbrsddn is offline  
Old 11-08-07, 07:56 AM
  #5  
streetlightpoet
Banned.
 
Join Date: Mar 2007
Location: Lexington, KY
Posts: 668

Bikes: Masi Speciale Fixed, Surly 1x1, 2 70's Bianchi folders, Swingbike, Columbia Cruiser 3 spd, Specialized Big Hit and P.2, Cove G-Spot, Xtracycled Bianchi San Jose.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Their site still lists them, 2 full suspension models. I don't remember if they had a hardtail or not.
streetlightpoet is offline  
Old 11-08-07, 07:56 AM
  #6  
indygreg
Duathlete
 
indygreg's Avatar
 
Join Date: Oct 2006
Location: Indianapolis, IN
Posts: 1,156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Lets say you could do this for a reasonable price and at a reasonable weight and it actually effectively put power down to both wheels . . . (just for sake of arguement)

I am not sure what the upside is at all. Having power to the front wheel would make it less stable in ice and snow. The best thing you can do in a car to gain steering on ice is to not apply power. In a well designed car, AWD or 4WD takes power away from the wheels that are slipping.

If were on ice or snow and had the front wheel have power, that would break it free. At that very second, you are on the ground.

It is not as if when you ride you always get stuck and just sit there and pedal the rear wheel to no avail . . .
indygreg is offline  
Old 11-08-07, 08:06 AM
  #7  
Chris_F
World's slowest cyclist.
 
Join Date: Oct 2007
Location: Londonderry, NH
Posts: 1,353

Bikes: Cannondale CAAD5 and Cannondale Rush

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by indygreg View Post
I am not sure what the upside is at all. Having power to the front wheel would make it less stable in ice and snow. The
Yeah. Plus, how much torque will that thing transfer from the front to rear (or visa versa) when you're not pedaling? Unlike a single wheel drive in just about any AWD configuration I've seen wheels tend to "share" torque, unless some sort of open diff is used. Doesn't sound particularly stable.
Chris_F is offline  
Old 11-08-07, 08:18 AM
  #8  
streetlightpoet
Banned.
 
Join Date: Mar 2007
Location: Lexington, KY
Posts: 668

Bikes: Masi Speciale Fixed, Surly 1x1, 2 70's Bianchi folders, Swingbike, Columbia Cruiser 3 spd, Specialized Big Hit and P.2, Cove G-Spot, Xtracycled Bianchi San Jose.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
From my understanding the front only gains power once the rear slips, and while they claim that it's good with snow/ice I think the real strength is in steep climbs being able to stand up and not worry about the rear slipping out.
streetlightpoet is offline  
Old 11-08-07, 09:48 AM
  #9  
pyroguy_3
Senior Member
 
pyroguy_3's Avatar
 
Join Date: Oct 2005
Location: Blo-no, IL
Posts: 556

Bikes: 2005 Specialized Hardrock Sport, 1970's Miyata Liberty ala fixed gear

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
It's good for sandy, loose conditions, apparently. Also, has anybody ever tried to ride their bike on ice? It is the exact opposite of easy. I'm pretty sure that if my bike had had power to the front wheel I might not have fallen over so damn many times. The front wheel just sort of shoots out from underneath you. There was actually a question about awd in MBA this issue.
pyroguy_3 is offline  
Old 11-08-07, 10:00 AM
  #10  
streetlightpoet
Banned.
 
Join Date: Mar 2007
Location: Lexington, KY
Posts: 668

Bikes: Masi Speciale Fixed, Surly 1x1, 2 70's Bianchi folders, Swingbike, Columbia Cruiser 3 spd, Specialized Big Hit and P.2, Cove G-Spot, Xtracycled Bianchi San Jose.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I remember more than a few bruised hips from my days riding in ND.
streetlightpoet is offline  
Old 11-08-07, 10:07 AM
  #11  
Chris_F
World's slowest cyclist.
 
Join Date: Oct 2007
Location: Londonderry, NH
Posts: 1,353

Bikes: Cannondale CAAD5 and Cannondale Rush

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by pyroguy_3 View Post
Also, has anybody ever tried to ride their bike on ice? It is the exact opposite of easy.
I made one attempt to cross one frozen puddle on my bike. I now get off and walk on ice instead of riding it. How do you even ride effectively on ice? Do you use studs? I was using my regular old summer tires and I don't see any conceivable way I could possibly have stayed upright on the bike.
Chris_F is offline  
Old 11-08-07, 10:17 AM
  #12  
Bruce_B
Señor Member
 
Join Date: Oct 2007
Location: Southeast USA
Posts: 147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Looks like it just adds weight and complexity for no good reason.
Bruce_B is offline  
Old 11-08-07, 10:36 AM
  #13  
cs1
Senior Member
Thread Starter
 
cs1's Avatar
 
Join Date: Feb 2004
Location: Clev Oh
Posts: 7,076

Bikes: Specialized, Schwinn

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 211 Post(s)
Liked 14 Times in 13 Posts
Originally Posted by Foo Rat times 3 View Post
i dont understand what it does? pushes air to your fork? whats the point of having a giant piston running through the frame of your bike?
It's not a piston, It's driveshaft that goes through the frame.


Tim
cs1 is offline  
Old 11-08-07, 10:42 AM
  #14  
01amberfirewv
Senior Member
 
Join Date: Aug 2007
Location: Fairmont WV
Posts: 133

Bikes: GT Ricochet, Mongoose Villain

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
They had one on display at the last camp jeep I attended but I didn't get a chance to ride it. I don't think I would want one but would like to take one for a test ride. If I go to camp Jeep this year I will have to try one out
01amberfirewv is offline  
Old 11-08-07, 11:20 AM
  #15  
pyroguy_3
Senior Member
 
pyroguy_3's Avatar
 
Join Date: Oct 2005
Location: Blo-no, IL
Posts: 556

Bikes: 2005 Specialized Hardrock Sport, 1970's Miyata Liberty ala fixed gear

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Chris_F View Post
I made one attempt to cross one frozen puddle on my bike. I now get off and walk on ice instead of riding it. How do you even ride effectively on ice? Do you use studs? I was using my regular old summer tires and I don't see any conceivable way I could possibly have stayed upright on the bike.
With a very good center of gravity. You cannot try to turn or lean or else the front tire washes right out from underneath you. After about 6" of snow one day last winter, the bike/walking path I take to campus had been trampled down into a sheet of ice with lots of bumps. I do have a Panaracer Fire FR on my front wheel, which is very knobby, so that helped a little. But yeah it's basically coasting over the ice while keeping dead center over the bike with very little pedaling. I am going to throw some studs into my old tread-worn front tire for this winter though.
pyroguy_3 is offline  
Old 11-08-07, 03:59 PM
  #16  
BearSquirrel
Senior Member
 
Join Date: Aug 2007
Posts: 511
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
a) The Jeep AWD IS the Christini bike with a different sticker.

b) Full studs like a Nokian 296 make riding on ice just like riding on slightly damp singletrack. The problem is getting OFF the bike.
BearSquirrel is offline  
Old 11-08-07, 05:13 PM
  #17  
Svr
Senior Member
 
Svr's Avatar
 
Join Date: Dec 2005
Location: Atlanta, GA
Posts: 1,223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by BearSquirrel View Post
a) The Jeep AWD IS the Christini bike with a different sticker.
Yep, and they've been trying to sell the idea of an AWD MTB for the past fifteen years or so. I'm sure it'll catch on any year now....
Svr is offline  
Old 11-08-07, 05:33 PM
  #18  
Cyclist30907654
Banned.
 
Join Date: Jul 2007
Posts: 1,569
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Lee McCormick has an excellent review on this

leelikesbikes.com
Cyclist30907654 is offline  
Old 11-08-07, 06:38 PM
  #19  
rbrsddn
Senior Member
 
rbrsddn's Avatar
 
Join Date: Nov 2006
Location: Madison, CT
Posts: 680

Bikes: '98 Rhygin SS road,'99 Fat Chance Ti Fat, '95 Azonic Mtn bike, '88 Giant Sedona.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by BearSquirrel View Post
a) The Jeep AWD IS the Christini bike with a different sticker.

b) Full studs like a Nokian 296 make riding on ice just like riding on slightly damp singletrack. The problem is getting OFF the bike.

Word. I took this pic last Feb. on my first ride with the Nokians. I got off the bike and went down hard! Amazing traction on sheet ice when safely back on the bike.

rbrsddn is offline  
Old 11-08-07, 07:04 PM
  #20  
cs1
Senior Member
Thread Starter
 
cs1's Avatar
 
Join Date: Feb 2004
Location: Clev Oh
Posts: 7,076

Bikes: Specialized, Schwinn

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 211 Post(s)
Liked 14 Times in 13 Posts
Originally Posted by Svr View Post
Yep, and they've been trying to sell the idea of an AWD MTB for the past fifteen years or so. I'm sure it'll catch on any year now....
Kind of like a 29'r.

Tim
cs1 is offline  
Old 11-08-07, 08:24 PM
  #21  
indygreg
Duathlete
 
indygreg's Avatar
 
Join Date: Oct 2006
Location: Indianapolis, IN
Posts: 1,156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by pyroguy_3 View Post
It's good for sandy, loose conditions, apparently. Also, has anybody ever tried to ride their bike on ice? It is the exact opposite of easy. I'm pretty sure that if my bike had had power to the front wheel I might not have fallen over so damn many times. The front wheel just sort of shoots out from underneath you. There was actually a question about awd in MBA this issue.
This is just incorrect. Power to the front wheel would not add stability on ice, in fact the opposite is true.

Take a front wheel drive and stop on a snow or ice covered road with a slant to it. Apply power. The front end goes down the direction of the slant, with gravity. Take a RWD and do the exact same thing, the rear goes down the way of gravity.
Now take front wheel drive car and gun it around a turn . . .it will push, or in simple terms the front will lose traction. Do the same with a RWD and it will get lose, or the back end will spin around.
This is not saying one is better or worse in the snow. Front is generally better, but the main advantage is that about 65% of the weight is on those wheels to help get traction.

Now on a bike your front wheel just cannot lose traction or you go down. In a turn in soft stuff you have a shot at staying upright if the rear slips out. You have nearly no shot if the front does the same.

This is a gimmick, pure and simple. Bikes are not cars. People are so brainwashed about AWD that everyone demands a SUV with it when they live in an area that gets about 3 inches of snow a year. This bike maker is playing off of that . . . AWD must be better.
indygreg is offline  
Old 11-08-07, 08:51 PM
  #22  
pyroguy_3
Senior Member
 
pyroguy_3's Avatar
 
Join Date: Oct 2005
Location: Blo-no, IL
Posts: 556

Bikes: 2005 Specialized Hardrock Sport, 1970's Miyata Liberty ala fixed gear

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by indygreg View Post
Now on a bike your front wheel just cannot lose traction or you go down. In a turn in soft stuff you have a shot at staying upright if the rear slips out. You have nearly no shot if the front does the same.
So you mean, if the front were starting to slide to one side(assume a positive vector), and you applied force in the opposite direction (a negative vector), also known as pedaling with an awd bike, you wouldn't be able to counteract the force. Damn, seems all my physics just went out the window? What are you assuming the wave functions of your wheel's molecules are all jumping to a state of being where the tire doesn't pull you back into straight? For the life of me, I can't not remember a time when trying to get up a sandy hill on an ATV with RWD that didn't result in the front end drifting. Even riding a bike on the beach, on relatively hardpacked sand was a fairly difficult task. Now, throw the transmission into AWD, and bammo the front end tracks better. I'm not disputing that your explanation is wrong, just that mine is correct with respect to a bicycle. As for the weight being in the front of a car, next time you're on ice lean over your handlebars and start pedaling really hard to see if it works the same on a bike. I bet it wont.
pyroguy_3 is offline  
Old 11-09-07, 03:49 AM
  #23  
cs1
Senior Member
Thread Starter
 
cs1's Avatar
 
Join Date: Feb 2004
Location: Clev Oh
Posts: 7,076

Bikes: Specialized, Schwinn

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 211 Post(s)
Liked 14 Times in 13 Posts
Thanks for all the great info so far. I didn't know Christini was the actual mfg. Here's what I found out after that. https://www.christinibicycles.com/bikes-fullsus.php

Tim
cs1 is offline  
Old 11-09-07, 07:17 AM
  #24  
Chris_F
World's slowest cyclist.
 
Join Date: Oct 2007
Location: Londonderry, NH
Posts: 1,353

Bikes: Cannondale CAAD5 and Cannondale Rush

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by rbrsddn View Post
Word. I took this pic last Feb. on my first ride with the Nokians. I got off the bike and went down hard! Amazing traction on sheet ice when safely back on the bike.
Do they make clipless compatible crampons?
Chris_F is offline  
Old 11-09-07, 11:40 AM
  #25  
rbrsddn
Senior Member
 
rbrsddn's Avatar
 
Join Date: Nov 2006
Location: Madison, CT
Posts: 680

Bikes: '98 Rhygin SS road,'99 Fat Chance Ti Fat, '95 Azonic Mtn bike, '88 Giant Sedona.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'm going to screw some sheet metal shoes into the Lakes if we get a storm like that one again!
rbrsddn is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.