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Thread: Colossal

  1. #101
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    Quote Originally Posted by hutsonk View Post
    I realize I am hitting a two year old thread, but I am hoping you'll see this I'm getting ready to order a 51 Colossal without being able to ride it...you said you are 5'3"...what other size bikes do you have and ride? I'm struggling with what size to order. My CX bike has a 52TT and I ride a Small Niner.
    Struggling between the 51cm and the 53cm? I'm 5'-5" and I ride the 53cm, but had to put on a shorter stem.

  2. #102
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    Quote Originally Posted by WiTrailRunner View Post
    Struggling between the 51cm and the 53cm? I'm 5'-5" and I ride the 53cm, but had to put on a shorter stem.
    I'm 5'7 with a 28 inch inseam and ride a 53cm. Didn't have to shorten stem (I believe it came with an 80mm). Fits me perfectly. The 51cm would have been to small for me.

  3. #103
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    So just in case anyone else is interested, I found a really good deal on a steel fork. 390mm axle-to-crown, 45mm offset.

    By my calculations, my 58cm Colossal went from:
    head tube angle 73.0
    wheelbase 1,007
    trail 62.04

    To:
    head tube angle 71.8
    wheelbase 1,016
    trail 67.73

    I honestly can't tell much of a difference. It's a bit easier to ride no-hands, and generally tracks better. It seems like pretty slack geo on paper, but it still handles pretty much the same. Part of that could be because I've been riding the Vaya for so long, so I'm just used to bike with high trail figures. In any case, I can easily fit fat tires now, and that does make a big difference.
    Former bike mechanic; current idiot.

  4. #104
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    I am 5'7 and ride a 55cm Colossal. What's interesting is that I have a BMC GF02 and a BMC ALR01 both of which are 51cm. All fit great with 100mm stems
    He who dares....wins!

  5. #105
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    Interested in the fork? Pics?

    Quote Originally Posted by nato_the_greato View Post
    So just in case anyone else is interested, I found a really good deal on a steel fork. 390mm axle-to-crown, 45mm offset.

    By my calculations, my 58cm Colossal went from:
    head tube angle 73.0
    wheelbase 1,007
    trail 62.04

    To:
    head tube angle 71.8
    wheelbase 1,016
    trail 67.73

    I honestly can't tell much of a difference. It's a bit easier to ride no-hands, and generally tracks better. It seems like pretty slack geo on paper, but it still handles pretty much the same. Part of that could be because I've been riding the Vaya for so long, so I'm just used to bike with high trail figures. In any case, I can easily fit fat tires now, and that does make a big difference.

  6. #106
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    Very cool, love hearing about this kind of mod.
    I've been thinking about doing a low trail soma fork on my black mountain cycles road frame to get a feel for it before buying a low trail frameset (Elephant National Forest Explorer) that I'm on a wait list for.

    It also looks like the surly straggler 650b fork would work well on this frameset with a 380 axle to crown.


    Quote Originally Posted by nato_the_greato View Post
    So just in case anyone else is interested, I found a really good deal on a steel fork. 390mm axle-to-crown, 45mm offset.

    By my calculations, my 58cm Colossal went from:
    head tube angle 73.0
    wheelbase 1,007
    trail 62.04

    To:
    head tube angle 71.8
    wheelbase 1,016
    trail 67.73

    I honestly can't tell much of a difference. It's a bit easier to ride no-hands, and generally tracks better. It seems like pretty slack geo on paper, but it still handles pretty much the same. Part of that could be because I've been riding the Vaya for so long, so I'm just used to bike with high trail figures. In any case, I can easily fit fat tires now, and that does make a big difference.

  7. #107
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    Colossal-colossal.jpg

    Kind of a crappy picture but here ya go. The fork is an on-one pompetamine. I actually wanted to get the Surly LHT disc in a 26", which is basically the same a-c as the steamroller fork, but Planet X was blowing out the last of the pompetamine forks for like $25. I think the 650b straggler would work fine too.

    I've got 700x32 Zaffiros on there now, and there's about 2cm from the top of the tire to the bottom of the crown, so I think it could handle a 380mm a-c pretty easily, assuming the crown is about the same thickness (2cm).
    Former bike mechanic; current idiot.

  8. #108
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    Joined the club!

    The Colossal rides so smooth. I really like the more relaxed handling with the slacker headtube angle. It's so much less tiring than the Allez I was on. I had my LBS build it and added more stack spacers for my fit requirements. I also went with a 44Cowbell for now as the 42 he installed initially felt too narrow, perhaps because I was used to a really wide bar that was on my size 56 Allez.
    Build:
    56 Frameset/Enve fork
    Full Ultegra Drivetrain
    TRP Spyre brakes
    CK hubs, Carbon rims, Sapim Lazers, GP4000 tires,(GP4000S 2'sordered)
    Thompson Post and trial stem
    I think the weight was right at 22lbs.

    One note the GP 28's barely clear fork so I may go down to 25's. The 28's measured close to 31, I think...
    Great Bike!
    Colossal-image.jpg
    Attached Thumbnails Attached Thumbnails Colossal-image.jpg  

    Colossal-image.jpg  

    Colossal-image.jpg  

    Colossal-image.jpg  


  9. #109
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    53cm in stock ..

    on the floor at Krakatoa Bikes in Fairfax, CA.
    Colossal-dscn6220.jpg

  10. #110
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    Has anyone tried 650b wheels and tires on a 2014 Ti Colossal? Wondering if 38c tires would fit.

  11. #111
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    Quote Originally Posted by Moementum View Post
    Has anyone tried 650b wheels and tires on a 2014 Ti Colossal? Wondering if 38c tires would fit.
    I have a 2013 Ti model and am using Panaracer Pacenti Pari-Moto 27.5x1.5 (650bx38c) tires on Mavic XM319 rims w/ Sram X7 hubs. The tires ride nice and comfortable with no rubbing. That said, the bike steering has become super twitchy. It's hard to explain. It almost feels like the wheel is pulling in the opposite direction that I'm turning (when turning sharply). So, if I turn sharply to the left, it feels like the wheel wants to pull to the right. It's a weird feeling. I personally would not want to ride this bike that required a lot of sharp turns. I primarily set the bike up with the 38 tires to use a gravel grinder bike for long, straight gravel roads. Either way, the setup will work, but the steering feel may be affected.

    Colossal-20160114_134608.jpgColossal-20160114_134634.jpgColossal-20160114_134740.jpg
    Colossal-20160114_134712_modified.jpg

  12. #112
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    That's interesting. Thank you.

  13. #113
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    Quote Originally Posted by iLike29er View Post
    I have a 2013 Ti model and am using Panaracer Pacenti Pari-Moto 27.5x1.5 (650bx38c) tires on Mavic XM319 rims w/ Sram X7 hubs. The tires ride nice and comfortable with no rubbing. That said, the bike steering has become super twitchy. It's hard to explain. It almost feels like the wheel is pulling in the opposite direction that I'm turning (when turning sharply). So, if I turn sharply to the left, it feels like the wheel wants to pull to the right. It's a weird feeling. I personally would not want to ride this bike that required a lot of sharp turns. I primarily set the bike up with the 38 tires to use a gravel grinder bike for long, straight gravel roads. Either way, the setup will work, but the steering feel may be affected.

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    Sweet! I'm impressed the Enve fork will fit such a large tire.

    As far as quickening the handling - How much did the overall wheel diameter change? I'm trying to think if there would be other geometry changes... The tire tread pattern could be doing something too - what you describe sounds like the self-steer the fat bike guys say affect some combinations of geometry and fat tire tread.

  14. #114
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    Quote Originally Posted by iLike29er View Post
    I have a 2013 Ti model and am using Panaracer Pacenti Pari-Moto 27.5x1.5 (650bx38c) tires on Mavic XM319 rims w/ Sram X7 hubs. The tires ride nice and comfortable with no rubbing. That said, the bike steering has become super twitchy. It's hard to explain. It almost feels like the wheel is pulling in the opposite direction that I'm turning (when turning sharply). So, if I turn sharply to the left, it feels like the wheel wants to pull to the right. It's a weird feeling. I personally would not want to ride this bike that required a lot of sharp turns. I primarily set the bike up with the 38 tires to use a gravel grinder bike for long, straight gravel roads. Either way, the setup will work, but the steering feel may be affected.

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    I'm tempted to pull off this conversion. It looks tight, is there enough space between the frame and the tire so it doesn't rub with rim flex?
    2013 Salsa Colossal Steel
    2013 Salsa Beargrease
    2010 Trek Fuel EX

  15. #115
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    Quote Originally Posted by Raumfahrer Rolf View Post
    Sweet! I'm impressed the Enve fork will fit such a large tire.

    As far as quickening the handling - How much did the overall wheel diameter change? I'm trying to think if there would be other geometry changes... The tire tread pattern could be doing something too - what you describe sounds like the self-steer the fat bike guys say affect some combinations of geometry and fat tire tread.
    Here's a picture of the two wheelsets side-by-side. You already are familiar with the 650b wheels. My standard 700c road wheels pictured are Reynolds Stratus Pro Disc with 700x28 Panaracer Gravel King tires. The 700c/tire combo measure at 27 1/8 inches in diameter. The 650b/tire combo measure at 26 1/4 inches in diameter.

    As for tread, the two tires have nearly identical tread patterns and I don't think the Pari-Moto tire's tread would be aggressive enough to give that "pulling" feeling that I experience.

    And just to clarify, the "pulling in the opposite direction of where I'm turning" feeling I describe is subtle--not enough to pull me off the road, but enough to notice the difference and to be a little more careful/vigilant of the handling when going into a turn by keeping my hands steady in the turn. Does that make any sense?

    Colossal-20160306_202708.jpg

  16. #116
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    Quote Originally Posted by Triggsie View Post
    I'm tempted to pull off this conversion. It looks tight, is there enough space between the frame and the tire so it doesn't rub with rim flex?
    With the Mavic 650b wheel/tire combo I didn't experience any flex or rubbing while riding. The wheels are 32 spoke and the rims are pretty strong. In addition, I'm a fatty weighing in at 215lbs but what I've experienced so far with this particular setup is no rubbing or flexing.

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