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Discussion Starter · #1 ·
So I am weighing my options. I ordered .95kg penske front shocks and I want to do the install myself. Everything I found requires a spring compressor.

Is it worth me buying a cheap compressor and saving the $100 to $200 labor that a shop would charge me?

If so, what is a good, cheap, spring compressor to buy? I will probably only be using it once or twice anyway so it doesn't have to be expensive.

Thanks!
 

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There's few DIY and inexpensive options, search the forum.
Some are made of 2X4 wood piece and some of plastic fittings from the plumber's store.
Wood worked well for me.
 

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Discussion Starter · #3 ·
Can I use this? Universal Motorcycle Fork Spring Compressor Tool Kit by Traxxion Dynamics | eBay

There's few DIY and inexpensive options, search the forum.
Some are made of 2X4 wood piece and some of plastic fittings from the plumber's store.
Wood worked well for me.
I couldn't find any DIY that really explained the spring replacement well for me. Can you send me a link to one that worked for you?

I am mechanically inclined but never done fork springs before.

Thanks
 

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I have a Race Tech spring compressor, it's on this page, Tools
This one


It was a bit expensive, but I've used it quite a lot. It's nice to have one because then you might actually change the oil more often and keep your forks working nicely. If you really don't plan to use it more than once or twice (as in you're not expecting to keep riding motorcycles for more than 1 year?) then you should try to find someone who has the tools you can borrow, or make a fork tool to hold the cartridge.
Also on that Race Tech page:
 

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Discussion Starter · #6 ·
That will work, but you may need an extra set of hands to slip in the fork tool.
Why do you say that?

I've never used one but will it be worth buying this tool? Also can I do the spring only without taking the front forks off the bike completely?
 

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Because you need two hands to push the spring down and another hand to pull the cartridge up and one more hand to put the fork in to hold the cartridge :) I've seen in a few different service manuals a note like "find a helper to insert the fork tool".

It is possible to change the fork springs without taking the forks off the bike, but I'd say it isn't worth it. Taking the forks off is relatively easy and then you don't have to worry about getting fork oil on your bike. There would also be lots of stuff in your way, like the handlebars, which are arguably more annoying to move/remove than just taking the forks off.
 

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Discussion Starter · #8 ·
Hmm. Okay. A lot to think about for me. I may just pay to have it done to avoid frustration. By the time I buy all the things i'll need to suspend the bike, compress springs, measures fluid, etc, I could probably pay to have it done lol.
 

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Maybe :) You'll need a good front yoke stand, probably $100, plus the fork tools. It's really not a difficult job to change fork springs and fork oil, you just need to take your time and make sure you understand what you're about to do before you start.
 

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I did it with 2 people and a 2x4 with holes drilled in it and 2 8mm drills. It ain't rocket science and if you plan to do it twice a month, i'd recommend a spring compressor. i had a good front stand over from my zx-6r, so i only had to buy springs and oil and saved money in the first place. Since my time is free, i rather save the money for actual things, not services.
 

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Yeah, any tool to get the job done, really. Just take care not to get sawdust inside your forks. :p A friend of mine has done his using ratchet straps somehow to compress the spring. LOL
 

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If you are looking to minimize spending check out Marthy's bike build in the build section, he has a pic of his homemade spring compressor. It is a short piece of pvc tubing with 2 bolts, 2 eye bolts, and a couple of ratchet tie downs to negate the need for a helper.

http://www.fz09.org/forum/10-fz-09-builds/920-marthy-s-bike-built-3.html


There are also instructions on making a tool and doing it here:

Slide 6 Photo by RichBinAZ | Photobucket

If I replace only my springs and not full cartridges then I will probably use a similar tool and attempt to replace them with the forks still on the bike. The handlebars are easy to unbolt and move to the side, I just wrap them up with some foam so they don't mark the tank.
 

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Buy the racetech tool. It's the safest option if you intend to do the work by yourself and still cheaper than any shops labor charge, even if the forks are off the bike.

I went with the 1.0kg springs and the mechanic told me they were the stiffest springs he had ever installed. He had machined a steel circular compressor tool and even with ratcheting tie downs, still needed a 3rd hand. If you're doing it solo, go to ebay and buy the Racetech, it's $130 with free shipping.
 

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I posted the DYI on the spring compressor tool and I have since purchased the Race Tech tool. I can now do them rapidly without a spare set of hands. Tools last a lifetime, frustration rules you for an eternity.
 

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Hey clash0901, where do you live? Ride over to my place and we'll get it done. :)
hey Dave, I might take you up on that when I figure out what I'm doing with my front end.

Got a local price of $750 Canadian to get racetech gold valves and springs supplied and installed, or I'm considering the Andriani cartridges and springs, which is around the same price, but I'd have to get them installed extra. Not sure which is better in the long run.
 

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well it would really be the cartridge swap if I was going to try to do it myself.
the racetech option, I'd just get done at Mission Cycle in Angus, they are the Canadian Racetech specialists.
 
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Cheaper from Amazon.....

Buy the racetech tool. It's the safest option if you intend to do the work by yourself and still cheaper than any shops labor charge, even if the forks are off the bike.

I went with the 1.0kg springs and the mechanic told me they were the stiffest springs he had ever installed. He had machined a steel circular compressor tool and even with ratcheting tie downs, still needed a 3rd hand. If you're doing it solo, go to ebay and buy the Racetech, it's $130 with free shipping.
 

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Discussion Starter · #20 ·
The spring compressor is not the hard part. The hard part is taking the damn forks off the bike and not having the proper stand.
 
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