Kona Stab Garbanzo 2006ish

Afternoon all,
Apologies for the less than technical post... NEWBIE ALERT
I am getting more and more into MTB'ing and am lucky enough to live a short drive from Swinley Forest. I have also just inherited a 2006ish Kona Stab Garbanzo. Having searched online to see what a Garbanzo was all about I now understand it to be a repackaged Kona Stinky Primo from the same year, built for Whistler. There are still no real details on the bike itself though as it's relatively niche.
As it's a DH machine it's not exactly suited to the trails of Swinley Forest, especially going up. I find myself bouncing up and down more than going forwards. To combat this someone suggested swapping the large spring shock at the rear for a Air sprung rear shock with lockout or 'propedal'. I currently have what I believe is the stock Marzocchi Rocco (needs replacing anyway as it's had it's day) and up front a Marzocchi Bomber 66VF2.
Where do I start with upgrading/swapping the rear shock? I don't want to spend more than £100 right now so would be looking at second hand as long as it's in working order. What sizes do I need? anything I should particularly look out for or steer clear of?
The frame is a 15.5" which I believe classes as a Medium. I am around 13.5st and 5'10" which I've been told will make a difference too.
Many thanks in advance
Matt
Apologies for the less than technical post... NEWBIE ALERT
I am getting more and more into MTB'ing and am lucky enough to live a short drive from Swinley Forest. I have also just inherited a 2006ish Kona Stab Garbanzo. Having searched online to see what a Garbanzo was all about I now understand it to be a repackaged Kona Stinky Primo from the same year, built for Whistler. There are still no real details on the bike itself though as it's relatively niche.
As it's a DH machine it's not exactly suited to the trails of Swinley Forest, especially going up. I find myself bouncing up and down more than going forwards. To combat this someone suggested swapping the large spring shock at the rear for a Air sprung rear shock with lockout or 'propedal'. I currently have what I believe is the stock Marzocchi Rocco (needs replacing anyway as it's had it's day) and up front a Marzocchi Bomber 66VF2.
Where do I start with upgrading/swapping the rear shock? I don't want to spend more than £100 right now so would be looking at second hand as long as it's in working order. What sizes do I need? anything I should particularly look out for or steer clear of?
The frame is a 15.5" which I believe classes as a Medium. I am around 13.5st and 5'10" which I've been told will make a difference too.
Many thanks in advance
Matt
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IMHO of course.
Otherwise you need to measure the eye to eye length and travel of the shock and find something the same.
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Not really trying to make it "nice" but I'm going to try to reduce the bounce for now as it's quite a fun bike all round... the climbing aspect is becoming a pain although it's bearable to a point. Once I'm happy I've improved to a decent level I'll look at selling up and getting something better/newer but funds are tight at the moment so I'm just making do with what I have/can afford.
Forgive my ignorance... what is eye to eye length and how would I measure it?? Would you recommend anything to replace the Rocco?
Ta much
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