about EP Rear Spindle Bobbin

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AlomS
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about EP Rear Spindle Bobbin

Post by AlomS » Fri Sep 23, 2022 7:28 am


Hi guys,

A set of EP Rear Spindle Bobbin comes with my bike. I want to remove it, but I can't find any information for them including the manual or instructions. It's easy to loose the screw and remove the cap. but the bolt in red circle is very tight. I can't pull it out. Is there any possibie you guys know how to remove the bolt? TIA.
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XcelleraThor
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Re: about EP Rear Spindle Bobbin

Post by XcelleraThor » Fri Sep 23, 2022 4:36 pm


Hi AlomS,

the official website of Evotech Performance does not list a rear bobbin set.

The other (exhaust) side of the axle on my bike looks like this:
IMG_1429_AUT.JPG
There is a cotter pin through the otherwise continuous axle. Connoisseurs note that this photo is from a '22 H2SXSE, since the rims are all black.
I know my '18 H2SXSE also had that cotter pin.

Sorry, don't want to cause confusion, but this doesn't look right to me. Other than cramming the bolt in the red circle in the axle I don't see an alternative.

What do you have on the side with the cotter pin? Hopefully the cotter pin!
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AlomS
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Re: about EP Rear Spindle Bobbin

Post by AlomS » Sat Sep 24, 2022 6:23 am


XcelleraThor wrote:
Fri Sep 23, 2022 4:36 pm
Hi AlomS,

the official website of Evotech Performance does not list a rear bobbin set.

The other (exhaust) side of the axle on my bike looks like this:
IMG_1429_AUT.JPG
There is a cotter pin through the otherwise continuous axle. Connoisseurs note that this photo is from a '22 H2SXSE, since the rims are all black.
I know my '18 H2SXSE also had that cotter pin.

Sorry, don't want to cause confusion, but this doesn't look right to me. Other than cramming the bolt in the red circle in the axle I don't see an alternative.

What do you have on the side with the cotter pin? Hopefully the cotter pin!
hi Thor,

yes. you are very right. it's totally the same as yours. I have attached it. what's the next step? Thanks.
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XcelleraThor
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Re: about EP Rear Spindle Bobbin

Post by XcelleraThor » Sat Sep 24, 2022 12:57 pm


Well, since EP does not have an offering for the rear axle, I definitely think, something was jury-rigged here. Especially when looking at the offering EP has for the front axle. Trying to use something similar on the rear axle would fail, as it's cotter pin would definitely be in the way.

Good to see your bike still has this extremely important (safety) cotter pin and it wasn't removed for the bobbins.

So, I am making this up, as I go.

The bolt simply could have been mechanically driven into the axle. I doubt someone would have cut an internal thread into the axle and then screwed the bolt in. There is none by default. To rule that out I would take a larger pair of pliars and try screwing it out.
IMG_1430._AUT.jpg
The only other option I see, is to take a larger steel rod, like the one in the above picture and coming from the cotter pin's side, try to drive out the bolt. At first with gentle taps and then with more force. Be sure to move the rod's tip around the rear end of the bolt between hitting it so that the bolt has a chance of getting driven out evenly.

Let's see if other forum members have better ideas...
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CB250N (long gone) --- XJ600 (unforgotten) --- CBR600F4 (honorably discharged) --- '18 H2SXSE (GatewayDrug) --- '22 H2SXSE (NewQueen)

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XcelleraThor
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Re: about EP Rear Spindle Bobbin

Post by XcelleraThor » Sat Sep 24, 2022 1:09 pm


I took a closer look at your image of the bolt in the axle of your bike.
The bolt seems to be surrounded by a different (perhaps softer) material.
So it could well be, this "socket" was inserted into the axle and the bolt was then "clobbered" into it.

Another fact that speaks for jury-rigging...
1 x

CB250N (long gone) --- XJ600 (unforgotten) --- CBR600F4 (honorably discharged) --- '18 H2SXSE (GatewayDrug) --- '22 H2SXSE (NewQueen)

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AlomS
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Re: about EP Rear Spindle Bobbin

Post by AlomS » Sun Sep 25, 2022 6:41 am


XcelleraThor wrote:
Sat Sep 24, 2022 1:09 pm
I took a closer look at your image of the bolt in the axle of your bike.
The bolt seems to be surrounded by a different (perhaps softer) material.
So it could well be, this "socket" was inserted into the axle and the bolt was then "clobbered" into it.

Another fact that speaks for jury-rigging...
The good news is one part was removed easily. and I found description of the EP set as the link below shows.



- Simple to install and remove for wheel removal

the bad news is I found it's very hard to move and rotate the last part in the axle. it's different from the description above. :bash:
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Re: about EP Rear Spindle Bobbin

Post by Vex » Sun Sep 25, 2022 5:46 pm


This is part of the reason I got the magnetic slider. 😁
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