Replacing MTB Shock bushing with the DIY MTB tool

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SR Suntour Edge shock stuck down

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 The SR Suntour Edge shocks are popping up on a number of bikes these days and they seem like quite a nice little shock. We have heard of and seen a number on Focus Thron e-bikes that have been "stuck-down" This is where the main chamber pressure ends up in the negative chamber and causes the shock to collapse on itself. There are plenty of references out there on how to release a stuck down shock (I generally stick a rag through the eyelet to stop the can flying off) But the main issue is the cause of the air leak and how to fix it. With the ones we have seen it is the same cause each time and that is a sharp edge on the transfer port in the air can. As the main seal passes this port it get cuts, and over time this is enough to allow air from the main chamber into the negative. You can see the transfer port in the image above. If you run your finger over the port you'll be able to feel if there are any sharp edges. In this you can see the cut on the main seal where in th
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The Explorer Returns

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Dodsun Explorer circa 1993. Purchased from the Tamworth Bicycle Company for approx $700. I did own a mountain bike before this, a heavy steel monster in technicolor paint job that got stolen. From memory this bike came fully equipped with Shimano Alivio gear. This was a definite improvemnt over the previous bike and way easier to climb. In this pic the only original gear is the seat, seatpost, rear wheel and rear brake. The rear brake lever was a combo unit so I had to cut off the shifter mount to leave only the brake lever. The front wheel is still good but when I went to a suspension fork (about 5 years ago) I went disk and that meant a different wheel. I finally removed the original gears and shifters earlier this year although they were stuck in one combo for about 3 years.
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This is our latest test rig. Chosen because 1) singlespeeds are fun 2) they are quick and easy to build 3) it's much easier to notice small changes etc because of the lack of other distractions 4) singlespeeds are fun The previous N++ has been handed over to our new mechanic to play with and we built this one up to replace and and to check out some products that haven't got a good long term test elsewhere. Because I got Locky to build it under instruction I got to see how many things I am fussy about and also we got to toss around ideas about how things go together. You know the minutia that us bike owners dwell when we aren't riding. So over the next little while I'll be using this blog to discuss many of the processes and decisions (what products, colours, tunes etc) we went through.
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