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How to convert a fixie to a 5 speed?

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Old 06-26-18, 12:23 PM
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Android88
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How to convert a fixie to a 5 speed?

Hi,

i recently acquired an old bike in order to teach myself some bike mechanics.. and was wondering if some of you may be so kind as to help?

I am a 100% beginner who previously just left it up to the bike repairer so there will be a lot of questions with what may usually be obvious answers!

I hope to put gears on a fixie bike and am sure as how to go about it.. i know i need to swap the wheels out to a smaller size, put a 5 speed cog-set and a rear derailer on the rear wheel, and adjusters to the handle bars.. but...

what size is the wheel.. 44-559 or 26 x 175

what smaller size wheel would allow this bike to be fitted with rear gear cogs?

What type of cogset would fit this bike?

Thanks to any and all who help me with this.. it very much appreciated!
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Old 06-26-18, 12:34 PM
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Please post close-up photos of bike.

1. rear-wheel left & right side of hub

2. rear-dropouts of bike-frame

3. handlebar and stem area

4. frame under bottom-bracket/crank area.


If frame doesn't have hanger for rear-derailleur, we'll have to weld one on.
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Old 06-26-18, 12:42 PM
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a 5 speed screw on Freewheel bike and fixies are 120 rear dropouts,

but the rear opening fork ends on the back are different
than the typical front opening drop out on a derailleur bike

You Could get a 5 speed internally geared hub wheel , that may be simpler.




...
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Old 06-26-18, 12:48 PM
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Yeah, I guess it depends upon if frame has true track dropouts or it was converted road-bike originally.
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Old 06-26-18, 02:01 PM
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Whenever i try post pictures it tells me that i cant post url's until I have at least 10 posts.... even thoughi was uploading them straight from my device wtf!

Theres photos in my gallery...

Last edited by Android88; 06-26-18 at 02:08 PM.
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Old 06-26-18, 03:14 PM
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Why do you think you need to swap to smaller wheels?
that’s usually done to make room for fenders or wider tires.
A separate issue from gears.
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Old 06-26-18, 03:19 PM
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Originally Posted by Android88
Hi,

i recently acquired an old bike in order to teach myself some bike mechanics.. and was wondering if some of you may be so kind as to help?

I am a 100% beginner who previously just left it up to the bike repairer so there will be a lot of questions with what may usually be obvious answers!

I hope to put gears on a fixie bike and am sure as how to go about it.. i know i need to swap the wheels out to a smaller size, put a 5 speed cog-set and a rear derailer on the rear wheel, and adjusters to the handle bars.. but...

what size is the wheel.. 44-559 or 26 x 175

what smaller size wheel would allow this bike to be fitted with rear gear cogs?

What type of cogset would fit this bike?

Thanks to any and all who help me with this.. it very much appreciated!
1. probably both, assuming the second one should read 26 x 1.75"
2. don't need a smaller sized wheel. If it's a loose bearing cup and cone setup, you probably just need a longer axle and a couple of spacers. Then respace, and redish the wheel. Probably easier/about the same price as paying someone to respace/redish just to get a new rear wheel, but it's tricky because your bike might be 120mm spaced and most 26" wheels will be 135mm spaced. It's kinda rare to see 559 fixies, though, so maybe it was a conversion, and is actually spaced 135 or maybe 130? Might measure distance between inside faces of rear dropouts.
3. Most 5,6,7,8 speed freewheels will fit if the wheel is respaced and redished properly.

Last edited by LesterOfPuppets; 06-26-18 at 03:23 PM.
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Old 06-26-18, 03:22 PM
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Originally Posted by dabac
Why do you think you need to swap to smaller wheels?
that’s usually done to make room for fenders or wider tires.
A separate issue from gears.
Because it's a fixie.. and there wouldn't be enough space to fit a 5 speed cog in, so putting a smaller wheel on would give me more space for the cog?
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Old 06-26-18, 03:25 PM
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Originally Posted by LesterOfPuppets
1. probably both, assuming the second one should read 26 x 1.75"
2. don't need a smaller sized wheel. If it's a loose bearing cup and cone setup, you probably just need a longer axle and a couple of spacers. Then respace, and redish the wheel. Probably easier/about the same price as paying someone to respace/redish just to get a new rear wheel, but it's tricky because your bike might be 120mm spaced and most 26" wheels will be 135mm spaced.
3. Most 5,6,7,8 speed freewheels will fit if the wheel is respaced and redished properly.
Kinda forgetting the complete beginner thing.. could you say that again.. but slower... and simpler please! ☺
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Old 06-26-18, 03:32 PM
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Make 6 more post's, then load your pics or load them to a photo hosting service and provide a link.
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Old 06-26-18, 03:33 PM
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inside width of frame, in mm, to fit increasingly wide hubs,
5/120, 6~7/126, 8+ / 130.. 135 MTB ..
as the more speeds thing needs more axle width.
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Old 06-26-18, 03:35 PM
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Originally Posted by Android88
Because it's a fixie.. and there wouldn't be enough space to fit a 5 speed cog in, so putting a smaller wheel on would give me more space for the cog?
120mm 5-speed can be done.
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Old 06-26-18, 03:42 PM
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Originally Posted by LesterOfPuppets
120mm 5-speed can be done.
beginner.. need to know how aswell i mean?!
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Old 06-26-18, 03:43 PM
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Originally Posted by Android88
Kinda forgetting the complete beginner thing.. could you say that again.. but slower... and simpler please! ☺
I assume #2 requires the slower, simpler?

Respacing/redishing isn't really a beginner thing, so I'd advise getting a wheel that's already the right OLD (over locknut dimension), or the distance between the inner faces of the rear dropouts. Respacing can involve moving spacers from one side to another, or adding or removing spacers on the rear axle. Redishing is adjusting spoke tensions to move the rim back into the center plane of the bike frame after respacing is done.
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Old 06-26-18, 03:48 PM
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Originally Posted by Android88
beginner.. need to know how aswell i mean?!
Well, for the fixed/freewheel 120mm rear wheel I have, I would have to get a slimmer locknut on the fixed side (they make them pretty slim but the stock one on my bike is about 10mm thick). I would then have to put a spacer or two on the freewheel side, then screw on a 5-sp freewheel and make sure that the outer face of the locknut sticks out past the edge of the freewheel. Then reinstall the wheel with 5-speed freewheel on the drive side. Then adjust spoke tensions on the wheel in order to pull the rim back on center (the locknut and spacer changes will have put the rim off center).
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Old 06-26-18, 06:20 PM
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need pictures and measurement of rear dropout spacing

if it was a designed to be a fixie, then it won't have a derailler hanger if it was converted from a geared bike then you might have a derailler hanger that will drive some decisions

does it have brakes? need to think about those if it doesnt.
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Old 06-26-18, 10:04 PM
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Originally Posted by squirtdad
need pictures and measurement of rear dropout spacing

if it was a designed to be a fixie, then it won't have a derailler hanger if it was converted from a geared bike then you might have a derailler hanger that will drive some decisions

does it have brakes? need to think about those if it doesnt.
^ This is what you need to do first.

Take the rear wheel out of the frame and measure the inside where the wheel goes with a tape measure. It should be around 4-3/4" or 5" or 5-1/8" or 5-5/16".

Look up derailleur hanger so you know what it is. If it is a true fixie, it will probably have a horizontal slot.

Look at pictures of road and mountain bike brakes and see if your bike has a place for either. I didn't mention disc because I've never seen a fixie with disc brakes.

Then let everyone know what you have.

John
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Old 06-27-18, 07:31 AM
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Originally Posted by Android88
Because it's a fixie.. and there wouldn't be enough space to fit a 5 speed cog in, so putting a smaller wheel on would give me more space for the cog?
Ah, lingo....
The general assumption if you talk about bigger or smaller wheels is diameter, particularly the Bead Seat Diameter (where rim and tire overlap) of the rim.
And there is no determined relation between the diameter and the axle width AKA Over Locknut Dimension(OLD) of the hub.
So, for easiest accomplishment of your goal, you need a new wheel of the same diameter and the same OLD as your FG, but this time with gears.
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Old 06-27-18, 07:41 AM
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Originally Posted by Android88
what size is the wheel.. 44-559 or 26 x 175
They're the same, in two different sizing systems.

44 is the approximate width and height of the inflated tire in millimeters. It corresponds to the 1.75" in the latter group of numbers.
559 is the Bead Seat Diameter - where rim and tire overlap - in millimeters. It has no direct counterpart in the latter group of numbers.
26" is roughly the working diameter of the wheel, with tire properly inflated.
26" is a somewhat unreliable size description. There's something like five different and incompatible rim sizes all called 26-something.
That's the downside of using the inflated tire as a size reference. A bigger rim with a narrower tire end up having the same working diameter as a smaller rim with a wider tire.
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Old 06-27-18, 08:31 AM
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Originally Posted by Android88
beginner.. need to know how as well i mean?!
Get a bike repair book from the Public Library, read it..
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Old 06-28-18, 07:27 AM
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Everything on a bicycle works together. You can almost never change just one part without having to replace or modify something else in order to make it work.

It can certainly be done, but there are a lot of details to work out if you are trying to convert a single speed to a multi speed. Fitting the rear wheel is one of the easier considerations. Have you thought about cable routing yet?
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Old 06-28-18, 10:47 AM
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to put is simple....converting a fixe to 5 speed is not a beginner sort of thing

still not picture and measurments
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Old 06-28-18, 07:49 PM
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Originally Posted by Retro Grouch
Everything on a bicycle works together. You can almost never change just one part without having to replace or modify something else in order to make it work.

It can certainly be done, but there are a lot of details to work out if you are trying to convert a single speed to a multi speed. Fitting the rear wheel is one of the easier considerations. Have you thought about cable routing yet?
Cable routing is easy. Full length housing and zip ties is great for 5 speed.
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Old 06-29-18, 04:51 AM
  #24  
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Originally Posted by DannoXYZ

If frame doesn't have hanger for rear-derailleur, we'll have to weld one on.
The old Shimano SIS 5 speed derailleur has the arm which has a built in dropout. Am at work, so can’t post a pic, but pm me if you can’t find one, I have a couple and could hook you up with one.
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Old 06-29-18, 02:30 PM
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Originally Posted by FlMTNdude


The old Shimano SIS 5 speed derailleur has the arm which has a built in dropout. Am at work, so can’t post a pic, but pm me if you can’t find one, I have a couple and could hook you up with one.
shimano t-35 and t-55 (not positive on the model numbers) are still available with the integrated hanger.

Easiest way to do this is with a stirmey-archer 5sp hub already built in a wheel, especially if your frame has track forks (rear facing opening) rather than the horizontal dropouts (forward facing)
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