New Bike Pictures: Chumba Evo- Mtbr.com
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  1. #1

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    New Bike Pictures: Chumba Evo

    Here's my new whip: 2006 Chumba Evo m/l white
    2005 66 RC
    Fox dhx 5.0



  2. #2
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    nice, looks like a good mix of light weight and burliness. Enjoy.
    OVER THE LINE SMOKEY!

  3. #3
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    Holly Sweetness!!!!!!!

    That's SICK, just SICK!!!!!!!!!!!!!!!!

    Let's see some action shots!

  4. #4
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    ooooo i've been waiting for someone to post up a white evo... thats some x rated bike porn man

  5. #5

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    frickin insane.........ride report is a MUST!!!

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    should be doing something this weekend, be on the lookout for action shots (perhaps)

  7. #7

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    action shots

    did a little light shuttling and updated the bike to improve handling
    my buddy thought it would be funny to leave my head out of the shots



  8. #8
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    Nice, but the set up looks like full on freeride to me. Big tires, 50mm or less stem, Saint Cranks, and a 66. I'm guessing 38-40lbs. Climbing with that much rake on a non adjustable fork will be a chore.
    Last edited by ronny; 06-18-2006 at 11:55 AM.

  9. #9

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    ..

    Quote Originally Posted by ronny
    Nice, but the set up looks like full on freeride to me. Big tires, 50mm or less stem, Saint Cranks, and a 66. I'm guessing 38-40lbs. Climbing with that much rake on a non adjustable fork will be a chore.
    yea definitely not a XC set up

  10. #10

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    congrats, cpt obvious, this is the AM forum. That is a Boxxer ride in the picture, 5-7 inches of U-turn travel

  11. #11
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    Quote Originally Posted by theOtherMrT
    congrats, cpt obvious, this is the AM forum. That is a Boxxer ride in the picture, 5-7 inches of U-turn travel
    My comments were based on the first picture with the 66 fork. The Boxxer will be easier to climb with. Even with the Boxxer, this Evo is probably still around 40lbs. More freeride than AM. There is nothing wrong with the Evo in a freeride build,(yes, it is a freeride build) as it shows how versatile the bike really is.

    Good to see the Evo with a coil shock. Looks good.

  12. #12

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    yup, does look like a very versatile frame!

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    Quote Originally Posted by ronny
    Nice, but the set up looks like full on freeride to me. Big tires, 50mm or less stem, Saint Cranks, and a 66. I'm guessing 38-40lbs. Climbing with that much rake on a non adjustable fork will be a chore.

    66 has a Light falvor. Claimed weight is 6lb and change......which means 7lbs. But it does have ETA and TST to help with Climbing. I saw one guy had it and it can drop up to 5 inches. 66 light with the EVO would be a pretty sick FreeRide rig or AM if you go the leg.

    I've seen some guy climb with VPFree with dual crown fork flying up the hill. I was sucking air on top of one hill and this dude popped a wheelie when he got to the top with a 40lb bike....sick bastard!!!!! wish I could be that sick one day LOL....

  14. #14

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    that evo is definitely one of the sickest frames i've come across in a while, but it looks so high off the ground to give any real racing capability... like someone said earlier it looks like a bike that can take massive hits and really soaks up some terrain, but that bikes' really got to raise your center of gravity

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    Quote Originally Posted by cjh_mtb
    that evo is definitely one of the sickest frames i've come across in a while, but it looks so high off the ground to give any real racing capability... like someone said earlier it looks like a bike that can take massive hits and really soaks up some terrain, but that bikes' really got to raise your center of gravity

    some of the CHUMBA racers were racing the evo at sea otter..with the fox36 the bb was probably lower, the evo was designed around a six inch fork, as an all mountain bike really, so yea, having a really tall axle to crown height probably throws of the geom a bit
    Last edited by carnetorta; 06-18-2006 at 10:13 PM.

  16. #16
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    Quote Originally Posted by cjh_mtb
    that evo is definitely one of the sickest frames i've come across in a while, but it looks so high off the ground to give any real racing capability... like someone said earlier it looks like a bike that can take massive hits and really soaks up some terrain, but that bikes' really got to raise your center of gravity

    With a 6 inch fork the BB is 14.25 inch(really low for 6 inch bike) according to Chumbaracing.com. My intense SL was 14.5 with only 4.5 inches of travel and that was on the low setting. MR.T there put a Marzocchi 66 which is a 7 inch fork and Marzocchi is known for higher ride height, but with proper sag that white EVO should not be much higher than 14.5 inches....I think. I think the 66 would take the HT angle down to around 66 degrees and that would be pretty sweet FR/DH geometry.

    BTW what type of racing do you have in mind?

  17. #17
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    Quote Originally Posted by duke777
    With a 6 inch fork the BB is 14.25 inch(really low for 6 inch bike) according to Chumbaracing.com. My intense SL was 14.5 with only 4.5 inches of travel and that was on the low setting. MR.T there put a Marzocchi 66 which is a 7 inch fork and Marzocchi is known for higher ride height, but with proper sag that white EVO should not be much higher than 14.5 inches....I think. I think the 66 would take the HT angle down to around 66 degrees and that would be pretty sweet FR/DH geometry.

    BTW what type of racing do you have in mind?
    A 14.25" bb height is about what most 6" travel bikes are at these days. My 6-Pack had a 14.25" bb height with a 150mm fork. The Nomad is a little less at 13.8" or something along those lines. With an adjustable fork dialed down, the bb height should lower accordingly.

    The Bottom line is that if you want a 6" trail bike you are going to have to sacrifice in certain areas, to gain in others. ie; climbing vs descending.

    I didn't like the look of the Evo at first and I don't really know if I do now. I think it is growing on me. I really want to hear some ride reports about the Evo. Especially longer rides with technical ups and downs. The Evo is turning heads and making some noise on these forums, which is a good thing. It is nice to see some new innovation coming to mountainbiking these days. A guy gets tired of hearing about the same bikes all of the time.

  18. #18
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    Quote Originally Posted by ronny
    A 14.25" bb height is about what most 6" travel bikes are at these days. My 6-Pack had a 14.25" bb height with a 150mm fork. The Nomad is a little less at 13.8" or something along those lines. With an adjustable fork dialed down, the bb height should lower accordingly.

    The Bottom line is that if you want a 6" trail bike you are going to have to sacrifice in certain areas, to gain in others. ie; climbing vs descending.

    I didn't like the look of the Evo at first and I don't really know if I do now. I think it is growing on me. I really want to hear some ride reports about the Evo. Especially longer rides with technical ups and downs. The Evo is turning heads and making some noise on these forums, which is a good thing. It is nice to see some new innovation coming to mountainbiking these days. A guy gets tired of hearing about the same bikes all of the time.

    I have an EVO with lighter wheelset and Maverick DUC32. Just rode Cooks corners to old camp coming down via luge. If you are not from OC area this trail is 15.7 miles with 2784ft of climbing, it's pretty loose, fairly rocky, ruts, small drops, some what technical and lots of fun.

    The bike climbs really well....better than a lot of XC bikes I've tried. Very much point and shoot style of riding even going up, I missed my line a lot times got into quite a few ruts and it went up as if it was flat. It does have a little bit of "stall" feeling when hitting bigger rocks climbing, typical of NON VPP/DW type of suspension. Just a little bit of momentum would take care that...or smooth pedaling which I'm still working on.

    Coming down luge was really fun on EVO, it loves carving those twisty turns and rolls right over those rocks and drops like it was smooth. I am looking for rougher lines now and days on the EVO which could be ugly if I really mess up.

    Honestly on the EVO I have found very little compromise if any. The HT angle is fairly slack but with climbing mode on Maverick or ETA on marzocchi you can tackle pretty steep stuff on it. I actually climbed most of the trail on 6 inch setting because there are a lot of sharp edge rocks. Coming down is simply awesome, gave me a lot of confidence and I know I have not even come close to the bike's ability. And funny thing is this bike pedals really really well.

    If you in OC area just ask them for a demo ride. If you are at rest of country they do have a demo tour but it would be harder for you. At least for me the bike as been awesome, everyone I know said I am much faster now......I had 2 intense(None VPP) before.

  19. #19
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    Good report.

    Quote Originally Posted by duke777
    I have an EVO with lighter wheelset and Maverick DUC32. Just rode Cooks corners to old camp coming down via luge. If you are not from OC area this trail is 15.7 miles with 2784ft of climbing, it's pretty loose, fairly rocky, ruts, small drops, some what technical and lots of fun.

    The bike climbs really well....better than a lot of XC bikes I've tried. Very much point and shoot style of riding even going up, I missed my line a lot times got into quite a few ruts and it went up as if it was flat. It does have a little bit of "stall" feeling when hitting bigger rocks climbing, typical of NON VPP/DW type of suspension. Just a little bit of momentum would take care that...or smooth pedaling which I'm still working on.

    Coming down luge was really fun on EVO, it loves carving those twisty turns and rolls right over those rocks and drops like it was smooth. I am looking for rougher lines now and days on the EVO which could be ugly if I really mess up.

    Honestly on the EVO I have found very little compromise if any. The HT angle is fairly slack but with climbing mode on Maverick or ETA on marzocchi you can tackle pretty steep stuff on it. I actually climbed most of the trail on 6 inch setting because there are a lot of sharp edge rocks. Coming down is simply awesome, gave me a lot of confidence and I know I have not even come close to the bike's ability. And funny thing is this bike pedals really really well.

    If you in OC area just ask them for a demo ride. If you are at rest of country they do have a demo tour but it would be harder for you. At least for me the bike as been awesome, everyone I know said I am much faster now......I had 2 intense(None VPP) before.
    Thanks, just what I was waiting for. I live in Canada,right outside of the Rocky Mountains,in Alberta. Getting a demo up here is probably out of the question.

    Most of our trails involve long and fairly technical uphills, which are rewarded with, duh, long dh runs. I am always researching the newest bikes and the Evo sounds like the real deal. Do you know how much the frame weighs with the shock? Dont hurt yourself too badly on that beast

  20. #20
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    Quote Originally Posted by ronny
    Thanks, just what I was waiting for. I live in Canada,right outside of the Rocky Mountains,in Alberta. Getting a demo up here is probably out of the question.

    Most of our trails involve long and fairly technical uphills, which are rewarded with, duh, long dh runs. I am always researching the newest bikes and the Evo sounds like the real deal. Do you know how much the frame weighs with the shock? Dont hurt yourself too badly on that beast

    The claimed weight is just over 7lbs. It felt a little heavy (really burly tubings) but it is not a brick. And it's definitly a lot lighter than my old Uzzi SLX which has claimed weight of 9lb and change.

    My build right now is around 31-32lbs so if you use heavier fork, tires and a heavier duty rear wheel you probably can get away under 35lbs still. The number may not sound so impressive but the the bike's climbing ability is in no way correlated to how much it weights, it's a LOT better.

    BTW one of the thread on MTBR some dude is racing the EVO in Canadian open DH races with EVO setup with dual crown forks so I personally will never come close to reach EVO's DH ability.
    Last edited by duke777; 06-19-2006 at 09:13 PM.

  21. #21
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    Quote Originally Posted by duke777
    It does have a little bit of "stall" feeling when hitting bigger rocks climbing, typical of NON VPP/DW type of suspension.
    Thanks for the write-up. I have ridden several VPPesque bikes, SC, 5.5, marin - all seemed to have a bit of that 'stall' feeling when climbing over a big rock/root. I thought that was characteristic of the VPP design- stiffening suspension under chain tension (pedal kickback), which also gives it that great acceleration.
    I have not noticed the stall riding FSR bikes.

    I am not saying one is better, just looking for clarification..
    Thanks!
    Last edited by CharacterZero; 06-29-2006 at 10:53 AM.

  22. #22
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    Quote Originally Posted by CharacterZero
    Thanks for the write-up. I have ridden several VPPesque bikes, SC, 5.5, marin - all seemed to have a bit of that 'stall' feeling when climbing over a big rock/root. I thought that was characteristic of the VPP design- stiffening suspension under chain tension, which also gives it that great acceleration.
    I have not noticed the stall riding FSR bikes.

    I am not saying one is better, just looking for clarification..
    Thanks!
    Interesting....a lot people say the VPP type of design has "less" stall. When I feel a stall it could simply be lack of momentum due to lack of muscle

    I test rode the Nomad but not over anything interesting. But it does feel a little weird over bigger bumps. Not sure if it was just me.

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