Removing and replacing the rear wheel spindle nut ?

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AllanP
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Removing and replacing the rear wheel spindle nut ?

Post by AllanP » Wed Jun 21, 2017 12:35 am

I'm at the stage in ownership now when I need to change my first tires but have run into a problem. I'm too feeble to loosen the rear wheel nut by myself using a breaker bar and 60mm socket and there is no way I could tighten it to the colossal 184.4 lbft/250nm torque required using my 2ft long torque wrench with one hand while holding the socket in place with the other. I've ordered a special 60mm rear wheel socket from Racefoxx which should locate on the nut more securely than a conventional socket: KTM 1290 rear axle nut tool 60 mm (B8-M1YM-LO50)

Even with that however, it looks like its going to be a problem.

I could probably get the nut off using a pneumatic impact wrench but could not tighten it up accurately to the specified torque using this tool. A friend of mine who has a 1290SD-R uses an impact wrench going both ways and estimates the tightening torque by marking the original position of the wheel nut then returning it to exactly this position when he puts it back on again.

Anyone got any experience of removing and replacing a rear wheel on the SD-GT and getting the nut tightened up accurately again?

Newjerseyduke
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Re: Removing and replacing the rear wheel spindle nut ?

Post by Newjerseyduke » Wed Jun 21, 2017 3:06 am

its a 2 man job in my opinion. I have my 73 yr old dad sit on the bike (he loves it), holding both brakes in neutral. I back it off with a 3 foot breaker bar and tighten it with an almost 3 foot 250 max ft/lb torque wrench. getting both locking pins through the castlelated nut can take some luck as well.
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JDS1290SDr
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Re: Removing and replacing the rear wheel spindle nut ?

Post by JDS1290SDr » Wed Jun 21, 2017 4:03 am

A electric or air impact works best for removal.
Your friends idea makes sense.
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DaveNZ
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Re: Removing and replacing the rear wheel spindle nut ?

Post by DaveNZ » Wed Jun 21, 2017 4:04 am

I brought a 60mm socket, i already had an impact driver (al cheepo) to remove the nut, and i brought a 2 foot torque wrench, its not that hard to torque the nut up, i do it myself. i brought the tools for my multistrada (55mm nut). I lay over the bike rear seat, body weight on the seat (stumach), left hand on the foot brake, and my pop eye right arm torques up the nut. i wouldn't like using an impact driver to tighten, no way.
2016 1290GT-remus link and muffler, 2010 Black 1200 Multistrada full Termi system with mapping, 2005 SMR 640, full Titanium system, Mikuni flatside racing carb, 2 sets of wheels, 18 litre tank, and a nice soft seat.

AllanP
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Re: Removing and replacing the rear wheel spindle nut ?

Post by AllanP » Fri Jul 07, 2017 11:10 pm

It took three guys to get the rear wheel nut off in the end. One to hold the bike, me holding the socket on the nut to stop it slipping off and a third guy to push on the breaker bar. Neither of the two impact guns I tried would touch it. I really need to be able to get it off and put it back on by myself and fortunately since then have found a tool which allows me to do this quite easily.

It is a special 60mm rear wheel axle nut socket from Racefoxx.com, part number B8-M1M-L050 (46.64Euro inc shipping to the US). What makes it work way-better than a normal socket is that it has a boss machined inside of the hex socket which locates inside the spindle and helps keep the socket firmly attached. I hope you will be able to see it from this picture.
Image

It's also a lot narrower than a conventional socket which allows one person to pull on a torque wrench hard enough to reach 250nm without it having a tendency to slip off the nut and bash the wheel, (still worth putting a towel over the wheel, just in case). To get the nut off and put it back on again I placed the bike on its side stand with the front wheel touching the wall so it can't walk forward, I also hang 2x10lb barbell weights on the rear brake pedal to apply that too. I then lean over the rear seat from the left side as NZDave suggested and pushed/pulled on my breaker bar or torque wrench.

These pics show a couple of different views of it.

Conventional socket
Image

Racefoxx socket
Image

DaveNZ
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Re: Removing and replacing the rear wheel spindle nut ?

Post by DaveNZ » Sat Jul 08, 2017 12:26 am

Good work Allan, nice socket, good score that.
2016 1290GT-remus link and muffler, 2010 Black 1200 Multistrada full Termi system with mapping, 2005 SMR 640, full Titanium system, Mikuni flatside racing carb, 2 sets of wheels, 18 litre tank, and a nice soft seat.

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Re: Removing and replacing the rear wheel spindle nut ?

Post by Aussie Dave » Mon Jul 10, 2017 8:30 am

Now that's a clever socket!

Nice to know there are some great tools available!
Current delights...1290GT-2017, CBR1100XX-2005

Prev loves...Capo1200TP-014, CBR11xx-002, 2xFZR1000genisis-94, FJ1200-89, FJ1100-84, XS1100P, VF1000F-83, CX500, VF750S, KZ1000J1-81, KZ1000ST-79, CB750F2-77, CB360T-74, CB175.. started it all in 1974 ;)

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