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Technology Specialist
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332 Posts
Discussion Starter · #1 ·
Hey guys,

I had my 06' Piranha with the Generation 1 frame crack on me. Right between the seatpost and the toptube.

Really sucks, so took it to the shop I bought it from and they set me up with the warranty.

2 weeks later I get word that I have a new frame and headset on the way from GF.

I went to go pick up my bike the other day and !!! my old Piranha now sits on a Generation 2 Big Sur frame.

Now thats cool and all I like the G2 frame but my concern is what should I expect with my parts being designed around the G1 frame? I know things like the fork offset are different between the two and I think the handlebars are different as well, and who knows if any other minor things may be different.

So anything I should be concerned about or change?

I guess I am now a proud owner of a Generation 1.5 bike :D
 

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Enthusiast
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5,360 Posts
The fork is the only issue. None of the other parts is specific to G1 or G2. Your steering might feel just a tad bit different. You might not even notice.
 

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294 Posts
IIRC, only real difference between G1 and newer G2- geometry is that there`s more offset build in OEM-forks sold with G2-bikes. That offset means that steer angle has kept ~same, but with bit different crown GF managed to add bit trail lenght ...

Because your old fork is normal (not from G2-bike), there`s no problem. When mounting it to new frame, it`s still G1-bike.
 

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Enthusiast
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5,360 Posts
Yes. The prev post is correct. Going from G1 to G2 meant that Fisher could shorten up the top tube a bit. G1 forced a longer top tube to counteract the steep head angle. G2 allowed a more relaxed head angle, allowing for a shorter top tube.

The top-tube length is potentially a fit issue. It won't affect handling. The fork offset difference affects handling, but I doubt it's enough to worry about. You'll just have to try out the bike and see what you think.
 
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