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  1. #1
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    LIGHT carbon 27.5 rims, i27-i30

    Running into the apparent limitations of 27.5, as the rim options don't seem to be nearly as great as they are for 29ers.

    I'd like to be able to get rims in the i27-30 range that are under 350g each, but not seeing a lot of options, even looking at the usual sources from Asia (Light Bicycles, Nextie, Btlos). The Nextie Premiums are 350g, and they don't offer their ultralights in width bigger than i25 (which is tempting).

    I want to run 2.3 to 2.6 tires and think it a few mils of width over the i25's might be helpful.

    Where should I be looking???
    Riding: '91 Carbon Epic Stumpjumper w/1" Slicks and a Rack on the Back

  2. #2
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    https://www.carbonfan.com/t800-tubel...28mm-33mm-35mm
    This rim(pick 35mm outer) is 30mm inner in 27.5 and weighs 345g + or - 15g. When you order you can include a request for the low end for weight in the message box. So could be closer to 330g. 2.5mm beads are not as strong as 3mm on other rims.

    If you pick 36mm outer you get a stronger 3mm bead asym rim at 370g. Check with them about any minus available.

  3. #3
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    Have you tried CarbonFan? Looks like they have rims that come close to what you're looking for.
    Do the math.

  4. #4
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    Quote Originally Posted by eb1888 View Post
    https://www.carbonfan.com/t800-tubel...28mm-33mm-35mm
    This rim(pick 35mm outer) is 30mm inner in 27.5 and weighs 345g + or - 15g. When you order you can include a request for the low end for weight in the message box. So could be closer to 330g. 2.5mm beads are not as strong as 3mm on other rims.

    If you pick 36mm outer you get a stronger 3mm bead asym rim at 370g. Check with them about any minus available.
    Added to the list, thanks...about right there with the Nexties
    Riding: '91 Carbon Epic Stumpjumper w/1" Slicks and a Rack on the Back

  5. #5
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    "It's only when you stand over it, you know, when you physically stand over the bike, that then you say 'hey, I don't have much stand over height', you know"-T. Ellsworth

    You're turning black metallic.

  6. #6
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    perhaps you meant this one (which looks pretty good):

    [OX27LW35] Ultralight version 27.5 inch carbon MTB rim 35width light weight 345g

    the one's you linked to were 28m outer (22m inner)
    Riding: '91 Carbon Epic Stumpjumper w/1" Slicks and a Rack on the Back

  7. #7
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    Hard to get a quality wide rim thats light. I have had good experiences with the asymmetrical 34 IW carbonbicycle rims. They are about 450g each and the asym holes evens out the tension on both sides. They are actually for sale on PB. You might find other rims on there. Also look at EIE, they have some light T800 rims if you're not too heavy for a good price.

    Sent from my SM-G930V using Tapatalk

  8. #8
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    Quote Originally Posted by jacksonlui View Post
    Hard to get a quality wide rim thats light.

    Sent from my SM-G930V using Tapatalk
    Yep.

    I weigh 140lbs and although I ride difficult trails, I'm a finesse rider, not a basher or a sender. Can't recall that last part I actually broke.

    So most everything is overbuilt for me and my riding. I want light.
    Riding: '91 Carbon Epic Stumpjumper w/1" Slicks and a Rack on the Back

  9. #9
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    Id really hone in on the width if I were the OP. If youre a Maxxis fan and want to run their WT tires in a 2.5 or 2.6 you should really look at an i30 imho.

  10. #10
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    I would go with the CF 30mm inner at 345 grams. My son has run these all season and he will/does jump just about anything and they have been great running 2.6 tires.
    CF customer service is fantastic and free shipping.
    Attached Thumbnails Attached Thumbnails LIGHT carbon 27.5 rims, i27-i30-img_9499_1.jpg  

    LIGHT carbon 27.5 rims, i27-i30-img_9495_1.jpg  

    LIGHT carbon 27.5 rims, i27-i30-img_9492_1.jpg  


  11. #11
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    Good to hear...wonder if/when they will offer new XTR hubs, which appear pretty close in weight to DT 240s, for a bunch less money
    Riding: '91 Carbon Epic Stumpjumper w/1" Slicks and a Rack on the Back

  12. #12
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    Quote Originally Posted by IPA Rider View Post
    Good to hear...wonder if/when they will offer new XTR hubs, which appear pretty close in weight to DT 240s, for a bunch less money
    While I am sure the XTR hubs are cheaper, the pricing through the chinese wheel builders is pretty crazy with the DT 240s. For example, EIE quoted me a price of $907 for a 29er wheelset using DT 240s, and that price included shipping and paypal fees. I'm not sure how much I could save building the wheels myself even with a cheaper hub. One caveat: that quote did not include any upgrades on the star ratchet, so I am assuming it is the stock 18T.

  13. #13
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    Quote Originally Posted by IPA Rider View Post
    Good to hear...wonder if/when they will offer new XTR hubs, which appear pretty close in weight to DT 240s, for a bunch less money
    To add to what Squeaky said, I normally purchase wheel parts separately and build wheels myself, but CF price was close to what I would pay for a set of DT 240 hubs alone in Canada.
    Most are 18T unless otherwise specified.

  14. #14
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    Im running the Enve M630, internal width is 30mm and pretty light at 380 grams or so. They are massively pricey but what I love about them is you can run a 2.6 at super low pressure without burping/pinch flatting.

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