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Author Topic: 100mm to 120mm fork?  (Read 277 times)

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Offline SHANO

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100mm to 120mm fork?
« on: August 25, 2014, 05:11:33 PM »
I have an older Spec. Hardrock that I keep around for tooling around the hood and for friends without bikes. It's a 19" with a 100mm Psylo. The Psylo is way too soft, there isn't any compression adj. left, and can't find stiffer springs any where. I was thinking of going to a Reba RL 120mm. My question is...will the different axle to crown measurements between the two forks change the frame stance that much?
Thanks
Shane

Online JasonS

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Re: 100mm to 120mm fork?
« Reply #1 on: August 26, 2014, 09:49:07 AM »
I have a 120 on my 07 hardrock and all is fine. It did slacken my front end a bit but I like the way it handles now. It will create extra stresss on the frame but mine has been ridden hard and I havnt had a problem yet.

Offline $irWattZZZZ

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Re: 100mm to 120mm fork?
« Reply #2 on: August 26, 2014, 09:53:15 AM »
you can probably convert that reba to 100 if you dont like it as a 120.

Offline bjdraw

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Re: 100mm to 120mm fork?
« Reply #3 on: August 26, 2014, 07:38:31 PM »
Was in the same situation a few years back, did tons of research. Bottom line is that adding 20mm of travel will slacken your head tube angle a few degrees -- assuming the axel to crown increases a full 20mm too. I ended up doing it and liked the way the bike handled better as it started out a full 71 degrees cross country geo and I don't like to ride just cross country style trails. I ended up going wider on the bars and shorter on the stem as well.

Overall it worked out technically, but financially I should've just bought a new bike. It would've been cheaper.

Offline SHANO

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Re: 100mm to 120mm fork?
« Reply #4 on: August 27, 2014, 08:13:23 AM »
Thanks for the suggestions. not sure what I'm going to do. Buying a new bike is probably the better option. A used 100mm air fork with an uncut steerer would be nice.

 

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