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Nexus hub on Schwinn Traveler frame?

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Nexus hub on Schwinn Traveler frame?

Old 03-29-08, 01:29 PM
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chocula
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Nexus hub on Schwinn Traveler frame?

Hello everyone:

I regularly lurk here, but rarely post. But today I have a question. I'm working on a project based on a 1979 (I think) Schwinn Traveler frame. My goal is a low budget approximation of the A.N.T. Boston Roadster:

https://www.antbikemike.com/bostonroadster.html

I'd like to use a Nexus hub on this bike, but I'm unsure about the spacing needed. Will this hub fit or will cold-spreading the rear triangle be necessary? Also, since the bike has horizontal dropouts, I presume I'll need the anti-rotation washer. Anyone know how that works?

Thanks in advance for any replies.

John
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Old 03-29-08, 02:03 PM
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Yes, almost certainly.
I think the 7 & 8 speed Nexus hubs are 132mm (maybe 135?) but your Traveler is most likely 120mm with an outside chance at 126. I think this Sturmey 5 speed would fit without having to bend anything.

There are some Nexus 4 speed hubs out there still. I've one with a coaster brake that was about 130mm, and it came with anti rotation washers. I believe the new Sturmey and Shimano hubs do as well.

I don't know how wide the Nexus 4 is without the coaster brake.

It's actually quite a bit simpler to set up than a derailleur system, in my opinion.
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Old 03-29-08, 03:24 PM
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Cool idea, but I believe the spacing will be a stretch for your Traveler. I have a '79 and the spacing is 120mm. Check the Shimano Nexus info on Harris website and you'll see they require a 132mm spacing.
https://sheldonbrown.com/harris/shimano-nexus.html

Mooo gives good advice to look at the S-A hub which can spaced from 115mm and up. Plus the 8 speed is less expensive then the Shimano and it comes with the shifter. Good luck on your project.
https://sheldonbrown.com/harris/sturmey-archer-hubs.html
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Old 03-29-08, 05:38 PM
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I put a Nexus 8 in my 1980 Fuji Royale. The Royale was a 12 speed with 126mm spacing. I initially spread it to 130 and shoe-horned the Nexus in there. This worked fine but was kind of a pain for changing flats so I cold-set it to 130 and everything fits great.

The Nexus can work with 130 or 135 depending on how you use the anti-rotation washers that are included with the hub -- either inside the dropouts or outside the dropouts. They give you 4 or 6 of them for use with different kinds of dropouts (Horizontal, Semi-Horizontal, and Track, I think).

If your bike was originally a 10-speed, you probably have 120mm spacing so you will have to cold-set it. This is not terribly difficult and I was really happy with the results when I did it. In fact, I'm going to do it again tonight to a Schwinn Varsity. Check this thread out on mplsbikelove: https://www.mplsbikelove.com/forum/viewtopic.php?t=4036 it has a really good description of the method I learned to cold-set a frame that is a little more detailed than the description Sheldon uses (and I suggest you read his article on the subject as well).

My Fuji with the Nexus-8 hub is my favorite bike.
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Old 03-29-08, 07:43 PM
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I think that Sturmey Archer 8 speed was designed for bikes with 20" wheels. With a 700c wheel, the gearing is just too tall unless you run a ridiculously small chainring. The SA 5 speed is tempting. A wheel with a Nexus hub would cost more than I've ever paid for a complete bicycle, including the PX10 that I bought new.

Don't be afraid of cold setting. It's no big deal. Follow Sheldon's instructions to the letter and you won't have a problem.
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Old 03-30-08, 08:31 AM
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Originally Posted by Dirtdrop View Post
I think that Sturmey Archer 8 speed was designed for bikes with 20" wheels. With a 700c wheel, the gearing is just too tall unless you run a ridiculously small chainring. The SA 5 speed is tempting. A wheel with a Nexus hub would cost more than I've ever paid for a complete bicycle, including the PX10 that I bought new.

Don't be afraid of cold setting. It's no big deal. Follow Sheldon's instructions to the letter and you won't have a problem.

Good point! With my Nexus I run a 48 tooth front chainring and a 19 tooth rear sprocket. The Nexus came with both a 19 and a 23. I live in fairly flat country and do a lot of riding in 6th gear. Since 5th is 1-1 gearing, I've considered going to an 18 or even 17 rear sprocket to get me riding in 5th more. I've done a couple century rides in rolling hills and managed to use every one of the 8 speeds which makes me not want to gear up 1st too much! Maybe I will experiment with the gearing a little this summer.

Also, my wheels are now 700's. You may need to find brakes with a little more reach as the 700's braking surface is 4mm lower than the 27's. Not a big deal and not expensive, but it's another thing you have to take care of.
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Old 03-31-08, 01:13 PM
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Thanks for the replies, everyone. And for not saying, "just measure the spacing, you big dummy," which is what I did after my post. Sorry I didn't do that beforehand. Turns out the spacing on the bike is 126 mm, so this Schwinn Traveler may be a little newer than I thought.

I'm still shopping around for internal hub options so I'd appreciate any suggestions (thanks for yours, Mooo). I'd prefer one already built into a wheel. Or maybe it's time for me to learn how to build a wheel.
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Old 03-31-08, 01:29 PM
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Vintage Schwinn Traveler with Nexus
The above link is what inspired me to try it with my Trek
Vintage Trek with Nexus



More pics at Vintage Trek with Nexus
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Old 03-31-08, 02:43 PM
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Originally Posted by Bolo Grubb View Post
Vintage Schwinn Traveler with Nexus
The above link is what inspired me to try it with my Trek
Vintage Trek with Nexus

More pics at Vintage Trek with Nexus
I had seen the Schwinn you linked to above, but in my mind it was a Paramount, so my searches for it had been fruitless. Thanks for sharing your Trek as well. Here's a before photo of my project bike:



I'm unsure of the year. I found serial numbers on the dropouts and on the headbadge, but they were a little difficult to make out. Also, does anyone think the forks are a little bent? Or is that an illusion?
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Old 03-31-08, 05:55 PM
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Harris Cyclery has prebuilt 700c wheels with Nexus hubs. They're $305.95, but the matching front wheel with a Deore hub is only $59.95. They're built with Sun CR-18 rims and DT Competition spokes. Price the parts and you'll see that's a pretty good deal.
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Old 03-31-08, 09:14 PM
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Originally Posted by Dirtdrop View Post
Harris Cyclery has prebuilt 700c wheels with Nexus hubs. They're $305.95, but the matching front wheel with a Deore hub is only $59.95. They're built with Sun CR-18 rims and DT Competition spokes. Price the parts and you'll see that's a pretty good deal.
That is how I got my wheels
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Old 04-01-08, 07:21 AM
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I got my Nexus 8 on ebay and had the wheel built localy. (My World Voyageur in the previously attached thread) It worked out to be about the same as the Harris pre-built wheel. BTW I have a Nexus 4 speed hub built into a 700c wheel and the OLD is 122mm without the roller brake. The sizing makes it a good candidate for a 120mm spaced rear frame. I got this hub from ebay as well.

I did a couple of thousand miles of all weather commuting on the Nexus 8 and overall was very happy with it. The only draw back besides the weight (on a commuter bike it's not that critical) was changing a rear flat, in the dark and cold. Engaging the shifter cable can be a bit of a pain when you cant see well and your fingers freeze up. I eventually built up another bike for winter commuting as the World Voyageur did not have adequate clearance for fenders & 35mm studded tires.
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Old 04-01-08, 03:26 PM
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I thought the Nexus 8 was direct 1:1 in 4th gear, not 5th?
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Old 04-02-08, 07:25 AM
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I am expecting my Nexus 8 today and will be building into an early 80's World Sport that I have been commuting on for the last year. I am pretty stoked about the probability of less issues (salty roads, dirt, etc.) with drivetrain relative to front and rear derailler.

I do have a question for all of you that have or are planning on this conversion - what are you using for cranks? I have a few older cranksets that I am thinking of using, but was curious what everyone else's approach is/has been?
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Old 04-02-08, 07:30 AM
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Originally Posted by nopinkbikes View Post
I thought the Nexus 8 was direct 1:1 in 4th gear, not 5th?
https://sheldonbrown.com/harris/shimano-nexus.html#8
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Old 04-02-08, 04:08 PM
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Ah, 4th is used for aligning the markings. Thanks for the link. Very interesting.
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