Chromag Phase 30 Wheels AndrewM
Long Term Review

Chromag Phase30 Wheels

Words Andrew Major
Photos Andrew Major Unless Noted
Date Apr 7, 2020
Reading time


Compared to the plethora of sweet carbon options on the market today aluminum rims simply aren't as cool, they aren't as stiff, and yep - they will dent. And while denting an aluminum rim is certainly a more predictable failure mode than I've experienced with carbon, there are oodles of folks who will claim that their carbon wheels have saved them bags of money in the long term versus the cost of replacement aluminum hoops and wheel builds. It's a seductive conversation, especially for the weight-conscious rider.

But hang on, what if a company were to put a lot of effort into choosing their internal structure and material to optimize the balance between stiffness, compliance, and durability, and add a degree of dent resistance? The Whistler brand makes a strong argument for aluminum with their welded and ground 'fusion-welded' joint, their uniquely reinforced bead walls, directional spoke bed, and an extruded and formed shape. They also made them look sweet and plastered on a Chromag logo!

ohlins full bike.jpg

Trevor ran the wheels on his 2017 Specialized Enduro with the stock Roval carbon wheels as a comparison. Photo: Deniz Merdano

We tested Chromag's trail-rated, 510 gram, Phase30 29'er rims and besides one dent that Trevor endowed early in testing, after burping some air out of his rear tire, they held up through a solid year of rim-kicking. I have to take some responsibility for said dent. After all, I did jinx the whole review by wondering aloud in my first look why the Whistler-based brand didn't spec their 100 gram heavier BA30 rim in the rear given the local terrain.

Suffice it to say that I'm impressed that after all the times the rims are sporting a single blemish, but a Phase30 for the front and BA30 rear would have made for a nice talking point on min-maxing weight distribution and it's always nice to have a hook.

Chromag Phase 30 rim

Dimensions for the Phase30 and BA30 rooms. The BA30 is a hundred grams more portly option for rim killers.


Their Magna40 uses the same tech as these but delivers i40 widths for 26+, 27+, and 29+ applications. Thank you!

From a tech perspective, Chromag's 'fusion welded' process sounds very similar to the chemical process that Velocity USA uses to ensure an overlapped joint that's stronger than the rest of the, perfectly aligned, rim. I also have yet to break a spoke in a Velocity or WTB rim with angled drilling and the Phase30's are the same story so I think there's something to taking that extra manufacturing step.

I'd love to see rims in a rainbow of other Chromag colours as much as the next rider, but the finish on the black rims, boring though they may be, has held up fantastically. Besides, rims really are a wear item so why not invest in some colourful hubs-for-life that'll wear black shoes nicely?

Chromag Phase 30 Wheels AndrewM

Large rounded bead edges are more and more commonly being seen with carbon hoops and should assist rim and tire durability.

Chromag Phase 30 Wheels AndrewM

I know I mentioned liking the rim tape in part 1; however, I want to reiterate that we did multiple tire swaps without changing it.

Phase Two

I started the test process and then handed the wheels over to Trevor for the full trashing. This was for a combination of reasons in that I was already committed to testing some other rims, I don't own a bike that uses SRAM's XD driver, and also I found the 10° crank rotation between engagement points to be an excessive amount of float where Trevor found it to be totally to his liking.

Chromag Phase 30 Wheels AndrewM

Chromag uses a thin, but strong, steel axle to allow for smaller ID, larger overall, bearings in their hubs. It's a neat idea.

Chromag Phase 30 Wheels AndrewM

My time with the Chromag hub was short but brutal as I ran it on my single speeds exclusively using an XD single-speed kit.

Chromag Phase 30 Wheels AndrewM

Four, leaf-spring backed, pawls and a 36-tooth drive ring for 10° engagement. The leaf spring design is robust and performs perfectly.

Trevor's a faster rider than I am and he noticed some unwanted rear wheel flex compared to the carbon Rovals that were stock on the Specialized Enduro. This was specifically when fighting to hold a line "railing turns." The trade-off was a smoother overall ride which goes to show just how stiff the Roval wheels are when we're talking about a long travel bike with top-end suspension, front & rear, and big meat.

The rims never needed to be tensioned, including after Trevor dented the rear, and the hub wasn't serviced after the initial teardown to sneak a peek inside. The bearings all spin true and there's no reason to think Trevor can't just keep hammering away on them. It should probably come as no surprise these days, but on these rims, we tried a variety of tires and they all aired up tubeless using a floor pump.

ohlins chase.jpg

Trevor was even practicing good social distancing months ago when this shot was taken. Photo: Deniz Merdano

Chromag has three different rims in the Goldilocks i30 internal that most riders prefer. The Phase30 and BA30 rims are both available in 27" and 29" sizes for 133 CAD (about 95 USD). For those that don't need the durability of a welded rim, they also have a much less expensive Ally pinned version that shares the same i30 width and robust beadwall but loses the directional spoke drilling. It comes in 26", 27", and 29" for 70 CAD (about 50 USD).

I'd be beyond curious to know if running a BA30 out back would have saved us from the one dent that Trevor managed to put in the rims but either way, I think it's an impressive outcome after over a year of riding. There are a lot of good aluminum rims out there at various prices and we think Chromag's Phase30 and BA30 are worth looking at for any rider who's decided to go aluminum.

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Andy Eunson  - April 7, 2020, 9:17 a.m.

Are you sure about those prices? The Chromag website lists higher unless it’s a price for a pair.


Andrew Major  - April 7, 2020, 10:27 a.m.

Phase30 and BA30 are $133 CAD. Ally is $70 CAD. Pricing was all there; I’ll figure out what’s up.


+1 Andy Eunson
Andrew Major  - April 7, 2020, 10:35 a.m.

Thanks Andy, pricing should read properly again. Appreciate the heads up.


+1 Timer
IslandLife  - April 7, 2020, 9:49 a.m.

To clarify, you don’t mention it, but you still can’t buy an actual wheel set from chromag unless you buy a bike correct?

Only the rims are available for sale?


+2 Timer IslandLife
Andrew Major  - April 7, 2020, 10:30 a.m.

They only list the rims for sale and Ian@Chromag told us, noted in previous piece, that the wheels are OE only with Chromag bikes.

Will Chromag sell you complete wheels without a bike if you ask? Intentionally left ambiguous.


+1 Andrew Major
Rob Gretchen  - April 8, 2020, 10:07 a.m.

Complete wheelsets are available from NRG in Nelson.    We stock them at our shop.


Andrew Major  - April 8, 2020, 10:09 a.m.

Thanks for confirming Rob! 

Any notable changes to the hubs from what we tested? These were first-production.


+1 Andrew Major
DMVancouver  - April 7, 2020, 2:42 p.m.

Any idea who makes the hubs? They must be rebadged something.

Also, I managed to flat spot a BA30 with CushCore. Given enough force, any alloy rim is going to deform.


+1 DMVancouver
Andrew Major  - April 7, 2020, 2:57 p.m.

No idea, but my understanding is they aren’t just rebadged in that the thin-wall steel axle / larger bearings are proprietary to Chromag.


+1 Andrew Major
Greg Bly  - April 7, 2020, 2:53 p.m.

26 27.5 and 29 available 

70 $ Canadian per rim. 

Even a crusty old cheap bastard like me can be pleased.

Thanks Cromag !


+1 Greg Bly
Andrew Major  - April 7, 2020, 2:55 p.m.

The cheaper Ally rims are pinned, not welded, at the seams but I’d definitely give them a try between the price and sharing the profile of the ~ doubly more expensive options.

I only mentioned them at all because they could be a solid min-maxing win. I haven’t seen them in person.


+3 Greg Bly Mammal Pete Roggeman
Matt Lee  - April 8, 2020, 8:23 a.m.

Also perfect for us retrogrouches still running a 26" wheeled bike. Chromag rims for my Chromag Aperture? Yes please!


Daniel.Stein  - April 28, 2020, 4:29 p.m.

Thanks for the review! Did you by any chance to get a weight for the hubs or the wheel set as a whole?  Just curious thanks!


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