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


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-01-09, 02:28 PM   #1
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Motobecane Messenger Seven Point Oh

I signed up for a ride called "Assault on the Carolinas" taking place next month but I didn't really have a proper bike to ride for 40 miles of rolling hills. My 27 speed "commuter bike" is awfully heavy and gets uncomfortable after about mile-25. My fixed gear Motobecane Messenger is a lot of fun and last fall I was doing 30 miles without too much discomfort but I'm out of shape from not riding much this winter and didn't think this was a great choice either. Obviously my mountain bike and polo bikes were not suitable candidates either. What is a boy to do...?

Throw an IGH wheel on the fixed gear and be ready to ride!

Below are some pictures of the bike. I know it is no longer a SS and so it's only marginally appropriate to post this in this forum but I don't care.

The bike BEFORE the conversion:


And AFTER:

Drive Side


Non-drive side


The hub.


Homemade shifter mount.
HandsomeRyan is offline   Reply With Quote
Old 03-01-09, 03:30 PM   #2
p120ud213azn
Senior Member
 
Join Date: Nov 2008
Bikes:
Posts: 132
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
man ryan ur so inventive and smart lol

what is igh btw?
p120ud213azn is offline   Reply With Quote
Old 03-01-09, 03:48 PM   #3
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
IGH = Internal Gear Hub.

I was inspired by the late Sheldon Brown's creation The San Jos8.



I'll eventually purchase a new frame to install this setup onto since I still love my messenger (as a fixed gear) for sub-30-mile rides.
HandsomeRyan is offline   Reply With Quote
Old 03-01-09, 03:55 PM   #4
rrooster
Senior Member
 
rrooster's Avatar
 
Join Date: Oct 2008
Location: Philly
Bikes: Motobecane Messenger
Posts: 272
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What gearing? I was seriously contemplating this on my moto mess... right up to the moment that I sold it. Maybe the next one, heh.
rrooster is offline   Reply With Quote
Old 03-01-09, 04:05 PM   #5
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The stock 48T chainring x 19T cog that came with the wheel. It's raining so I haven't had a chance to see how I like this gearing yet but my LBS who sold me the wheel said they have plenty of cogs laying around if I decide this isn't the gearing for me.
HandsomeRyan is offline   Reply With Quote
Old 03-01-09, 04:09 PM   #6
rrooster
Senior Member
 
rrooster's Avatar
 
Join Date: Oct 2008
Location: Philly
Bikes: Motobecane Messenger
Posts: 272
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by HandsomeRyan View Post
The stock 48T chainring x 19T cog that came with the wheel. It's raining so I haven't had a chance to see how I like this gearing yet but my LBS who sold me the wheel said they have plenty of cogs laying around if I decide this isn't the gearing for me.
Oops, I mean like how many gears internally? 3-5-7-8, etc....?
rrooster is offline   Reply With Quote
Old 03-01-09, 04:17 PM   #7
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oops, I guess I forgot to post that info!

The wheel is built around an SRAM S7 (7 speed) hub.
HandsomeRyan is offline   Reply With Quote
Old 03-01-09, 04:39 PM   #8
Dustintendo
Senior Member
 
Join Date: Aug 2008
Location: Rochester, NY
Bikes:
Posts: 302
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
wow dude, thats really cool. i was dreaming about something similar with the new sturmey archer s3x on my fantom cross uno
Dustintendo is offline   Reply With Quote
Old 03-01-09, 08:03 PM   #9
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Dustintendo View Post
wow dude, thats really cool. i was dreaming about something similar with the new sturmey archer s3x on my fantom cross uno
Thanks.

An S3X Uno would be awesome!
HandsomeRyan is offline   Reply With Quote
Old 03-07-09, 11:01 PM   #10
iansmash
Senior Member
 
Join Date: Jun 2008
Location: Richmond, VA
Bikes:
Posts: 848
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So does it stay fixed gear or what?

Also I notice it's got a lever dealy like a coaster brake...is that necessary?


I'm really interested in building up something like this on my old frame
iansmash is offline   Reply With Quote
Old 03-07-09, 11:13 PM   #11
cc700
Ths Hipstr Kills Masheenz
 
cc700's Avatar
 
Join Date: Oct 2006
Location: seattle
Bikes: tirove
Posts: 8,551
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
it doesn't stay fg.


and the drum brake on the s7 is necessary if you want a rear brake but don't want to run a rear brake at the bridge.

still...

awesome. i'm glad i have a road bike but if i didn't i'd love to have an igh i could affix to my kilo.
cc700 is offline   Reply With Quote
Old 03-08-09, 07:16 AM   #12
martinus
Senior Member
 
martinus's Avatar
 
Join Date: Dec 2008
Bikes:
Posts: 939
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How "rolling" ?
I can do 40 in "the flats" , even with a semi-strong headwind, no problem ... I think with the many poss. climbs, I would want more of an upright possition ...

Almost, touring bike/centrury style .

The bike looks good regardless ... could be even better, If you cut the bar in half & put the "shifter" right by the stem . Than you just slide a smaller dia. bar insie the 2 halfs drill some holes & finish it off with a couple of "plug welds" ... maybe even line up the "seam" with one side of the stem . So it would still look like an FG/SS ...

.
.
.

Last edited by martinus; 03-08-09 at 07:24 AM.
martinus is offline   Reply With Quote
Old 03-08-09, 08:53 AM   #13
HandsomeRyan
Pants are for suckaz
Thread Starter
 
HandsomeRyan's Avatar
 
Join Date: Mar 2007
Location: Mt. Airy, MD
Bikes: Hardtail MTB, Fixed gear, and Commuter bike
Posts: 2,578
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by iansmash View Post
So does it stay fixed gear or what?
No, it freewheels in all 7 gears.

Quote:
Originally Posted by iansmash View Post
Also I notice it's got a lever dealy like a coaster brake...is that necessary?
It is a coaster brake and on this bike it is necessary since I'm not running a rim brake (on a non-machined rim, that would scuff up the paint). If you haven't ridden a coaster brake biek as an adult you should try it sometime- mad skids without having to put balls to stem.

Quote:
Originally Posted by iansmash View Post
I'm really interested in building up something like this on my old frame
Go for it! I'm working on securing another frame so I can build a new FG but I really like the internal gear hub too. You can feel the difference from a traditional derailleur setup but I like the difference. It took a little getting used to but every time I've gotten a new bike it's been an adjustment (mountain to road, road to fixed, fixed to coaster braked, etc.)

Quote:
Originally Posted by cc700 View Post
and the drum coaster brake on the s7 is necessary if you want a rear brake but don't want to run a rear brake at the bridge.
This wheel uses a non-machined rim so even though I'm running a dummy lever (so I can ride the hood) and have an extra brake caliper for the rear, I don't want to scuff up the rim. The coaster brake is a lot of fun too.

Quote:
Originally Posted by cc700 View Post
awesome. i'm glad i have a road bike but if i didn't i'd love to have an igh i could affix to my kilo.
Thanks. Admittedly a road bike is probably a better solution to doing longer rides but the IGH works pretty well and I like having something different. When I show up for a group ride or chill at the LBS I know I have something different than what everyone else is riding.

Quote:
Originally Posted by martinus View Post
How "rolling" ?
I can do 40 in "the flats" , even with a semi-strong headwind, no problem ... I think with the many poss. climbs, I would want more of an upright possition ...
I don't think I understand what you are saying? You do 40mph on a fixed gear into a head wind?

Quote:
Originally Posted by martinus View Post
Almost, touring bike/centrury style .
The IHG wheel is pretty heavy for a century ride but I think they are pretty tough for touring duty.

Quote:
Originally Posted by martinus View Post
The bike looks good regardless ... could be even better, If you cut the bar in half & put the "shifter" right by the stem . Than you just slide a smaller dia. bar insie the 2 halfs drill some holes & finish it off with a couple of "plug welds" ... maybe even line up the "seam" with one side of the stem . So it would still look like an FG/SS
Thanks. I considered cutting the bar but there were several problems that led me to use the mount that I ended up with.

The diameter of the road bars is larger than the diameter of flat bars the shifter was designed to mount to so even if I'd cut them I would have had to grind out the inside of the shifter to fit.
The bars are aluminum and my welder is only set up for steel.
Finding a piece of aluminum tubing the exact diameter of the inside of the bars to reinforce where I had cut them would have been difficult/expensive. Also I put a lot of pressure on the bars sometimes and a failed weld or stripped set screw on the tops could = dental surgery.
The mount I fabricated only cost $0.35 because the only thing I purchased was the set screw.
I kind of like the shifter where it is. It's easy to read what gear I'm in and convenient to shift when needed.
HandsomeRyan is offline   Reply With Quote
Old 03-08-09, 09:29 AM   #14
jet sanchEz
Senior Member
 
jet sanchEz's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 8,149
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 67 Post(s)
Great job.
jet sanchEz is offline   Reply With Quote
Old 03-08-09, 09:49 AM   #15
martinus
Senior Member
 
martinus's Avatar
 
Join Date: Dec 2008
Bikes:
Posts: 939
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by HandsomeRyan View Post
I don't think I understand what you are saying? You do 40mph on a fixed gear into a head wind?

Yeah, thats what I said ... No, what I ment was... I can ride 40 miles. NOT 40 mph.


Thanks. I considered cutting the bar but there were several problems that led me to use the mount that I ended up with.

• The diameter of the road bars is larger than the diameter of flat bars the shifter was designed to mount to so even if I'd cut them I would have had to grind out the inside of the shifter to fit.

You just need an "older" bar ... one that is not lugged or the ones that are really fat in the middle, but the older ones with the small bulge in the center & I think they kinda rise up a little , so it kicks the drop part out a little to the side + that would help with the next issue.

• The bars are aluminum and my welder is only set up for steel.

No doubt, its the difference between a MIG & a TIG. : o)

• Finding a piece of aluminum tubing the exact diameter of the inside of the bars to reinforce where I had cut them would have been difficult/expensive. Also I put a lot of pressure on the bars sometimes and a failed weld or stripped set screw on the tops could = dental surgery.

IMO still do-able, just takes time... roll up a piece of flat stock into it if need be. Plug weld would be plenty, the preassure would go to the insert pipe/stock, make it longer than the clamp on the stem, it'll be ok. Its NOT like you just cut the thing in half then expect 2 or 4 spot welds to hold it, with out failing

• The mount I fabricated only cost $0.35 because the only thing I purchased was the set screw.
• I kind of like the shifter where it is. It's easy to read what gear I'm in and convenient to shift when needed.
Very good points, cant argue with that...

Last edited by martinus; 03-08-09 at 09:53 AM.
martinus 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 11:30 AM.