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Chromag Rims Custom Hand Built Wheels

The ProWheelBuilder workshop

Custom Wheels on Chromag Rims, Built by Hand

Pick a Chromag rim, choose your hub, spokes and color, and we lace and true the wheel ourselves, one at a time, in our Georgia shop.

Why build your wheel around a Chromag rim:

  • Two rims to choose from: the Phase30 and the BA30 V2
  • Build for e-bike, clydesdale and tandem, mountain bike, MTB single speed or fat and plus
  • Rim and hub measured here, with spokes cut to the length your build needs
  • Laced by hand, tensioned and trued in our Georgia shop
Read more

Build your custom Chromag wheel for:

E-Bike / Clydesdale / Tandem→Mountain Bike→MTB Single Speed→Fat Tire / Plus Bike→

Start with the rim

The Chromag rims we build with

Each card opens the builder with that rim already chosen. Scroll for all 2.

Chromag BA30 V2 RimBA30 V2 RimBuild with this rim →Chromag PHASE30 RimPHASE30 RimBuild with this rim →

See all Chromag rims →

How it works

From parts bin to your doorstep

  1. Pick your parts1

    Pick your parts

    Choose a Chromag rim, then the hub, spokes and nipples. The builder only offers parts that fit together.

  2. We measure and prep2

    We measure and prep

    Rim and hub are measured here: real ERD, real flange geometry. Spokes are cut to the length your build needs.

  3. Laced by hand3

    Laced by hand

    One builder laces your wheel on the stand. No machine builds, ever.

  4. Tensioned and trued4

    Tensioned and trued

    Brought up to even tension, stress-relieved, trued round and true, and checked again after it settles.

More about Chromag custom wheels

Specs, pairings and FAQ

Custom hand built wheels with Chromag rims

Chromag designs its parts in Whistler, British Columbia, and tests them in the Coast Mountains, and its rims show it: 30mm inside, tubeless ready, with a bead wall about twice as wide as most rims so a rock strike is spread over more metal.

We lace Chromag rims to the hub of your choice and build the wheel by hand in our Georgia shop: tensioned evenly, trued flat and round, and stress-relieved before it ships. You pick the hub, spoke gauge and color, nipple material and lacing pattern; we make sure the combination is one that can actually be built.

Why Chromag rims are different

  • A bead wall built for rock strikes. Chromag concentrates material in the bead wall, where impacts land, and rounds the outer edge to reduce tire damage under compression. The aim is better dent resistance and tire retention, and fewer pinch flats.
  • A welded and ground seam. Both rims are fusion welded at the joint and then ground smooth, and Chromag says that makes the seam the strongest part of the rim. A full weld also keeps the joint airtight for tubeless.
  • Nipple beds angled to the spoke. Chromag's oriented bed lines up each nipple seat with the angle of its spoke. Chromag says this reduces stress on the nipple and spoke, which makes for a stronger wheel.
  • 6069 aluminum. The Phase30 and BA30 use 6069, which Chromag chose for higher tensile and fatigue strength and better fracture toughness than the 6061 in its Ally rim.
  • Two rims, one key difference. Chromag leaves the BA30's internal bracing out of the Phase30, saving about 40 to 60 grams, and keeps the same outer profile and bead wall shape. Chromag points riders who are hard on wheels to the BA30, and riders who put weight first to the Phase30.
  • What changed on the BA30 v2. Chromag says the v2 takes 20 percent more impact than the original at the same weight. A deeper section resists flat spots, and a wider center channel makes tire changes easier.

The Chromag rims we build with

Two Chromag rims, both 32 hole, disc only, in 29in and 27.5in. The Phase30 is the trail and all-mountain rim: a 17mm section without the BA30's internal bracing, 584g in 29in, in black. The BA30 V2 is Chromag's enduro and downhill rim: a taller 19mm section with an internal bridge against flat spots, 640g in 29in, in black or silver. Both have a fusion-welded, ground seam and a spoke bed angled to each spoke.

Choosing between them comes down to how hard you hit things. Riders who climb as much as they descend take the Phase30; e-bike riders, heavier riders and bike park regulars take the BA30 V2. A BA30 V2 rear with a Phase30 front is a sensible mixed set for an aggressive trail bike.

What to pair with a Chromag rim

A wheel is a system: the rim decides the tire and how much abuse the wheel will take, the hub decides the drivetrain and the axle fit, and the spokes have to suit both. With a 32 hole Chromag rim, a quality 32 hole Boost hub and double-butted spokes make a wheel that stays true through a season of rough riding.

Popular Chromag rim and hub pairings

Hubs our customers build with each Chromag rim, led by the pairings they choose most often in our build records since 2009. Every hub listed is in the builder today in a drilling and brake type that fits; tap a rim to start that build.

Popular hubs brands for these builds:

Want to check spoke lengths for a Chromag rim before you order? Our free spoke length calculator has Chromag's published ERDs for both sizes.

Chromag custom wheel questions

Can you build a wheel with a Chromag rim I already own?

Yes. Choose the supply-your-own rim option in the configurator, ship it to us, and we will lace it into a new wheel with new spokes cut to the right length for that exact rim. You pay for the parts you need and the build labor.

How many spokes should a Chromag wheel have?

Chromag makes both rims in 32 hole, which is the right count for trail, enduro and e-bike wheels. The configurator recommends a lacing pattern from your bike type and rider weight.

How long will my Chromag wheel take?

Build time comes down to parts availability rather than bench time. Your estimated ship date is shown in the configurator before you check out, so you know the date before you pay.

Not sure what to pick? Email info@prowheelbuilder.com (fastest) or leave a voicemail on 470-253-0929 — you will be talking to the people who build the wheels.

Not sure which rim or hub?

Tell the Build Assistant how you ride and what you want to spend, and it ranks complete builds for you.

Open the Build Assistant →

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