IGH in fixie frame
#1
Junior Member
Thread Starter
Join Date: Dec 2021
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
IGH in fixie frame
Hi All,
Could anyone manage to put an IGH (internal Gear HUB) into a fixie frame? I do not mean the 3 speeds one.
The problem is that
- the IGH LDO is 127 or 135 or more,
- while the fixie frame has 120mm. (On top of that the frame is ALU, where expansion/pull out is not that healthy).
I'm curious on modification of Alfine or Nexus, or any other. at least 7 speeds IGH.
Thanks,
Szabolcs
Could anyone manage to put an IGH (internal Gear HUB) into a fixie frame? I do not mean the 3 speeds one.
The problem is that
- the IGH LDO is 127 or 135 or more,
- while the fixie frame has 120mm. (On top of that the frame is ALU, where expansion/pull out is not that healthy).
I'm curious on modification of Alfine or Nexus, or any other. at least 7 speeds IGH.
Thanks,
Szabolcs
Last edited by babolcs; 12-13-21 at 10:55 PM.
#2
Veteran Racer
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,757
Bikes: 32 frames + 80 wheels
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1331 Post(s)
Liked 764 Times
in
431 Posts
I don’t think so. I have a Shimano Nexus 7 speed IGH set up in a frame with 130mm dropout spacing, and at best I see the possibility of reducing the OLD by maybe 5mm with a thinner hex nut on the NDS. If it were a steel frame you could safely spread the dropouts by 5mm, but I would not recommend doing this with an aluminum frame. However, there may be some older Sturmey-Archer 4 or 5 speed IGHs that might fit.
#3
Senior Member
Join Date: Mar 2019
Posts: 1,606
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 581 Post(s)
Liked 921 Times
in
518 Posts
Not an Alfine, but there are other options for hubs that are made to fit your OLD. Sturmey Archer is my first thought. Shimano might make some of their Nexus (less expensive cousin of Alfine) hubs to fit as well. The number of combinations of OLD, brake style, number of speeds Shimano offers are crazy. I don't know a place that actually stocks them, though.
#4
Senior Member
Join Date: Nov 2010
Posts: 3,504
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 586 Post(s)
Liked 612 Times
in
447 Posts
Here is a thread where someone did it and posted about it here:
https://www.bikeforums.net/bicycle-m...ack-drops.html
https://www.bikeforums.net/bicycle-m...ack-drops.html
#5
Senior Member
Join Date: Nov 2010
Posts: 3,504
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 586 Post(s)
Liked 612 Times
in
447 Posts
Sturmey Archer makes one:
Be the first to rate this product
120mm x 36 Hole (Silver)
Sturmey-Archer S80 XRF8 8 Speed Hubs - 120mm Spacing
Be the first to rate this product
- Includes hub,twist shifter, cable, mounting hardware & 25t 1/8" cog
- Hub Shell Material - 6061 Aluminum
- Hub/Brake Compatibility: Rim Brake
- Axle Diameter - 13/32" Slotted
- Axle Length - 175.0mm
- Over Locknut Dimension - 120.0mm
- Spoke Holes - 36
- Spoke Compatibility - 13g or 14g
- Sprocket Teeth - 23 or 25 tooth
- Weight - 1790g
- Overall Range - 325%
- Gear 1 - 100% (Direct Drive)
- Gear 2 - 132%
- Gear 3 - 148%
- Gear 4 - 169%
- Gear 5 - 192%
- Gear 6 - 220%
- Gear 7 - 250%
- Gear 8 - 325%
- Rear Axle Type: 13/32"
- Rear Hub Spacing (mm): 120 mm
- Weight (g): 1500 g
Likes For TugaDude:
#6
Veteran Racer
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,757
Bikes: 32 frames + 80 wheels
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1331 Post(s)
Liked 764 Times
in
431 Posts
Here is a thread where someone did it and posted about it here:
https://www.bikeforums.net/bicycle-m...ack-drops.html
https://www.bikeforums.net/bicycle-m...ack-drops.html
#7
I am potato.
Join Date: Jun 2015
Location: Pacific Northwest
Posts: 3,115
Bikes: Only precision built, custom high performance elitist machines of the highest caliber. 🍆
Mentioned: 29 Post(s)
Tagged: 0 Thread(s)
Quoted: 1788 Post(s)
Liked 1,628 Times
in
933 Posts
A Nexus 7 can go to 126 or (maybe) a bit narrower. All you trade is the ability to use the brake fitment. Keep the cover in place, swap the axle nuts for thinner versions & go wild.
__________________
I shouldn't have to "make myself more visible;" Drivers should just stop running people over.
Car dependency is a tax.
I shouldn't have to "make myself more visible;" Drivers should just stop running people over.
Car dependency is a tax.
#8
Senior Member
Join Date: Nov 2010
Posts: 3,504
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 586 Post(s)
Liked 612 Times
in
447 Posts
Thanks! I just skimmed the post. If you do a google search there have been several attempts to do this and documented here on the forum. It is an interesting challenge for sure.
#9
Member
I put a Shimano Alfine 8 135mm OLD in a SE Lager hi-ten steel frame by cold-setting the dropouts from 120mm to 135mm. Rode that for 3 years no issues but I definitely would not recommend it. Especially not with aluminum.
Unless your dead set on keeping your current frame, there are other, better suited frames with horizontal/reverse/semi dropouts with 135mm spacing (think Surly, All City)
Unless your dead set on keeping your current frame, there are other, better suited frames with horizontal/reverse/semi dropouts with 135mm spacing (think Surly, All City)
#10
OwainGyndwr
Hi All,
Could anyone manage to put an IGH (internal Gear HUB) into a fixie frame? I do not mean the 3 speeds one.
The problem is that
- the IGH LDO is 127 or 135 or more,
- while the fixie frame has 120mm. (On top of that the frame is ALU, where expansion/pull out is not that healthy).
I'm curious on modification of Alfine or Nexus, or any other. at least 7 speeds IGH.
Thanks,
Szabolcs
Could anyone manage to put an IGH (internal Gear HUB) into a fixie frame? I do not mean the 3 speeds one.
The problem is that
- the IGH LDO is 127 or 135 or more,
- while the fixie frame has 120mm. (On top of that the frame is ALU, where expansion/pull out is not that healthy).
I'm curious on modification of Alfine or Nexus, or any other. at least 7 speeds IGH.
Thanks,
Szabolcs
Last edited by GhenghisKahn; 12-23-21 at 09:11 AM.
#11
Junior Member
Thread Starter
Join Date: Dec 2021
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I contacted Sturmey, and unfrotunately the producion of that has been already stopped"IGH 8-spd are out of our program."
. Possibly there is one on stock somewhere...
. Possibly there is one on stock somewhere...
#13
Junior Member
Thread Starter
Join Date: Dec 2021
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I already checked the nexus 7, (it was a coaster brake version, and on that there was no possibility to bring it more narrow. :-( Possibly another version...
#14
Junior Member
Thread Starter
Join Date: Dec 2021
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I think I'd checked all the Shimano and Sturmey variations and none of them was available in 120mm OLD. (1 Sturmey seemed to be OK, but the production is stopped). :-(