AFAIK the TX750 shares the plate to plate dimension with the XS650s. I checked and both TX750 axle spacer collars are the same part numbers as the XS650's
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“Garage built, shed built”... stable built!
- Thread starter Bewarethemoon
- Start date
Nothing exciting to report on the build front at present.
I did mount a bench vice I bought on eBay (a refurbished Recond No.5) and I hung an ode to Kenny Roberts in a Yamah banner I also bought on eBay.
I like the silly little things like that.
I did mount a bench vice I bought on eBay (a refurbished Recond No.5) and I hung an ode to Kenny Roberts in a Yamah banner I also bought on eBay.
I like the silly little things like that.
Spent a couple hours after work on my TX750 swingarm now I have my vice in place and the flap discs for my Dremel & emery cloth I ordered off eBay turned up.
I decided to have weld added into the gaps at the front of the axle mounts so I thought I would see what I could do here first.
I started with a used flap disc on my angle grinder, then on to flap discs on my Dremel before a little hand shaping with emery cloth.
Any feedback would be welcome, this is my first time doing this but I’m fairly happy with the results.
I decided to have weld added into the gaps at the front of the axle mounts so I thought I would see what I could do here first.
I started with a used flap disc on my angle grinder, then on to flap discs on my Dremel before a little hand shaping with emery cloth.
Any feedback would be welcome, this is my first time doing this but I’m fairly happy with the results.
Boy, you certainly are making that thing pretty, lol. I just clean 'em up and bolt 'em on. Yes, width between the axle plates should match a 650 arm. I've had both 650 and 750 wheel assemblies in my 750 arms. The right side wheel spacer is the same size but the 750 one is chrome and looks better .....
I used a bottle jack. Put it on the tubes and not the plates. You could also use a small scissor jack. Just do a few mm at a time. They'll bend back considerably easier than you'd expect. push it out to the 215mm you want then release pressure and see how much it bent. Use that number as a guide for how much more you need to go.
Boy, you certainly are making that thing pretty, lol. I just clean 'em up and bolt 'em on. Yes, width between the axle plates should match a 650 arm. I've had both 650 and 750 wheel assemblies in my 750 arms. The right side wheel spacer is the same size but the 750 one is chrome and looks better .....
Cheers 5twins. I think I’m happy with what I’ve done there but I’m sure I’ll have another look at it before the next step, bodyfiller.
Now you’re going to have me searching for the 750 right spacer!
750 axles are pretty readily available on eBay for not too much money and usually come with both spacers, chain adjusters too sometimes. All those parts will swap with 650 ones. As I've mentioned before, the 750 swingarm is a dead ringer for the 650 one and uses all the same parts except for the chain guard. This is what makes the swap so easy.
Sorry to interrupt the thread but how much better is the TX750 swing arm? Is it worth hunting for one as an upgrade?
Now we’re getting somewhere I want one lol
It gives you a warm feeling and should be stiffer, but like peeing in a dark pair of pants no one will know the difference. Why radian arms are so popular you can TELL it's different. 
AFAIK no one has ever done any force, vs. deflection testing. it's on my round tuit list but rather far down.
AFAIK no one has ever done any force, vs. deflection testing. it's on my round tuit list but rather far down.
The tubing is thicker, making it more rigid. Like anything, there's a tradeoff... it's heavier so it add a little to the unsprung weight.
For me personally, I don't tear around dragging the pipes much anymore, so I don't really feel any flex from the 650 arm.
I sourced one after learning about their superior rigidity on here, probably via 5twins.
I want to improve all I can on this build whilst retaining the original looks of the bike, this swingarm hopefully allows me to avoid bracing.
I seem to remember 1mm thicker tubing. Did not know till reading a thread here that is also longer. Me thinks that the shock mount might be further back requiring a longer shock. Don't have mine any more so can't measure it.
Nah they are same length shock mount, and axle at least within 1/4"
Radian are longer.
Kinda funny; I found this first pic in a post from skull. But after looking at it for a while I realized that's my basement door the arms are leaning on.
Radian are longer.
Kinda funny; I found this first pic in a post from skull. But after looking at it for a while I realized that's my basement door the arms are leaning on.
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It's not longer. The big difference is in the diameter of the tubing used, it's nearly 1/4" bigger. I don't know about the tube thickness, maybe that's greater as well. It's the perfect "sleeper" mod. It looks just like the original and you can't really tell it's not unless you parked it alongside one with an original arm in place. Looking back and forth between the two, you would notice the bigger diameter tubes on the 750 arm.
All that being said, I put one on my '78 Standard years ago and the difference it made was quite noticeable. It was more stable and solid feeling at all speeds, not just going fast. Now recently, I put one on my '83 Special and the difference it made isn't as noticeable. All I can think of is that the Special rear end geometry, with it's more laid down shocks, is more rigid to begin with. I don't think that Yamaha planned it that way, they were after more of a "cruiser" look is all. But, it seems they may have achieved a more rigid rear end set-up in the process, more ideally triangulated and stiffer.
No matter, it's still a "mod" I like to do. If you shop around, you can usually score a 750 arm for $50 or less. As far as I'm concerned, that's not outrageously expensive as far as handling upgrades go.
All that being said, I put one on my '78 Standard years ago and the difference it made was quite noticeable. It was more stable and solid feeling at all speeds, not just going fast. Now recently, I put one on my '83 Special and the difference it made isn't as noticeable. All I can think of is that the Special rear end geometry, with it's more laid down shocks, is more rigid to begin with. I don't think that Yamaha planned it that way, they were after more of a "cruiser" look is all. But, it seems they may have achieved a more rigid rear end set-up in the process, more ideally triangulated and stiffer.
No matter, it's still a "mod" I like to do. If you shop around, you can usually score a 750 arm for $50 or less. As far as I'm concerned, that's not outrageously expensive as far as handling upgrades go.
I’ve had a brief little search on eBay and found a few TX750 axles with spacers and axle adjusters. I’ll be securing one for myself very soon.
Cheees 5twins for the heads up.
Good luck. I’ve been watching eBay for a while and haven’t seen any swingarms pop up in quite a while.
So I gotta ask on the 78 standard; was it just a swing arm swap or was it also a needed bushing upgrade at the same time? I find it nearly impossible to to do just ONE mod when I start changing things.
It replaced the stock arm that had the bushings replaced recently (with bronze ones), and the 750 arm still had (and still to this day has) it's stock plastic bushings. They work just fine if not worn and you keep them greased. The latest one I installed also still retains it's original bushings. They were unworn so why change them. In fact, that bushing and pivot tube set-up was the most unworn set I've ever encountered. The pivot tube looked practically new .....
That's one of the nice things about many of these TX750 running gear components. The motors died so early, the chassis parts saw very little use.
That's one of the nice things about many of these TX750 running gear components. The motors died so early, the chassis parts saw very little use.
