Removing Speedo Drive from Jota Front Wheel

springsoft

springsoft

Senior member
Location
Adelaide, South Australia
HI All,

I have seen the photos of the specialised tool to remove the speedo drive gear from the front wheel.
But I don't have one!  :(
I have tried some heat (propane torch) and a gear puller, but the puller would not retain its purchase on the small lip available on the rear face of the gear.

Any suggestions on how to remove and reinstall???  The gear is intended for a brand new later model wheel with bigger webbing.
 
G'day mate

Check around your circle of friends of friends and see if you can come up with somebody who has access to a set of bearing separator jaws for a puller. You'll need a set because you usually can't buy just one of these, and they're usually designed to work with professional-grade pullers that are too expensive for most people to buy themselves.
You just screw the 2 halves together below the gear, and if that alone doesn't get it off (it did when I did it) you can screw the puller onto it and tap or pull it off. You might damage a gear tooth or two a little bit if you're unlucky, but the pinion gear doesn't engage that far down and it won't make any difference.
 

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Recently removed the speedo drive gear from my RGS, thought I would need specialised toolsbut tried anyway. Afterremoving the discs, I placed a bit of wood on each side of the gear and used tyre levers to lever the gear off the wheel, come off surprisingly easy andto my knoweledge it had never been taken off.
Give it a go but don't be tempted to itwithanammer.

Terry
 
Apparently they were installed over the painted surface of the wheel and were usually machined with a pretty generous fit, so they often do come off (and back on) quite easily. But not always :-X

Ken
 
mcnicol said:
G'day mate

Check around your circle of friends of friends and see if you can come up with somebody who has access to a set of bearing separator jaws for a puller. You'll need a set because you usually can't buy just one of these, and they're usually designed to work with professional-grade pullers that are too expensive for most people to buy themselves.
You just screw the 2 halves together below the gear, and if that alone doesn't get it off (it did when I did it) you can screw the puller onto it and tap or pull it off. You might damage a gear tooth or two a little bit if you're unlucky, but the pinion gear doesn't engage that far down and it won't make any difference.
Click to expand...

those speedo drive gears are hard to find, and pricey if you do......

I have removed the speedo drive gear from three wheels now, as I was mucking about changing wheels and fitting Astralites(to which I fitted a Laverda speedo drive gear). I used a cheap bearing separator just like Ken has shown in his post, although being a cautious sort, I applied a fair bit of heat to the gear first with a commercial heat gun to expand it a bit. Came off cleanly each time, no problems or damage.

To fit the speedo drive gear, again I applied heat to the gear, then used a large socket just big enough to clear the flange but seat properly on the edge of the gear, then hammered it on.

Paul LeClair
 
I got my ring gear off with wide bladed screwdrivers (2 off) and a bit of heat.
Didn't even need the optional extra swearwords.
 
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