First Look: Industry Nine’s XD1 Driver Body for SRAM XX1

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

Industry Nine announced their XD1 driver body for SRAM’s XX1 1×11 drivetrain in October, and now we’ve got our hands on one to get our own XX1 group test underway.

Before installation, though, we snapped a few detail pics, actual weights and follow up with some install notes. I’m mounting these on my 2-1/2 year old Industry Nine wheels, which have held up incredibly well. Industry Nine has a rebuild manual that, despite a layout that could be improved a bit, is comprehensive enough to walk you through swapping the freehub bodies.

Click through for pics and weights…

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

The XD1 body is 11g lighter than a standard one, probably 10g if you take away the fresh grease on the original. That cuts down on the almost 60g added weight of an XX1 cassette compared to XX.

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

The XD1 is a good bit shorter, leaving room for the smaller cogs to sit on the axle.

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

Industry Nine’s freehubs have two internal sealed cartridge bearings between it and the axle, and one much larger bearing between it and the hub shell.

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

Six pawls, each with three teeth, surround the inside of the body. Each is held in place with a thin metal spring that both retains the pawl and helps it spring back. The design requires a thinner grease to ensure smooth action – they recommend DuMonde Tech. To see how the hubs, pawls and everything else is made in house (except bearings), check out our factory tour post!

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

Basically, you remove the driveside axle cover, loosen and unthread the non-drive dust cap, then tap the axle and freehub out. Once that combo piece is out, you pull (or tap with a rubber mallet if necessary…which it most likely will be) the axle out of the freehub body.

To install the XD1, reverse the process. The only issue we ran into was popping the outermost bearing out of the XD1 shell when reinserting the axle. It goes back in easy enough, but being able to see our “before” photos eased our mind that it wasn’t supposed to sit flush inside the XD1 body.

Want one? They’re available now for $100 for the body with internal bearings. The complete refit with pawls, springs and external bearing is $200 as shown here, but not required. You can swap over the pawls and bearings from your existing freehub body with perfect compatibility.

Industry Nine XD1Driver Body for SRAM XX1 cassette install notes and weights

The finished product!

Now, to get the complete group installed and start riding!

Comments

Dan - 12/10/12 - 10:07pm

Very nice!

by any chance do you know if Hadley is going to make a XX1 freehub body?

bin judgin - 12/10/12 - 11:51pm

Hadley? Let me check their informative website

ooohhhhhh

Feel free to send both my way, freehub & group if you get caught up in your day to day and can’t ride them.

Saris - 12/11/12 - 12:15am

@Dan

Hi Dan,

I’m a huge Hadley myself. I contacted them earlier this year and Suzanne stated that their are definite plans for an XX1 compatible freehub body in the works, but was unable to provide definite release dates.

Fingers crossed!

Ben - 12/11/12 - 12:39am

We just built up a SC Tallboy with XX1 at the shop. Pretty sweet stuff. We used the I9 Hub with traditional 32 H drilling, DT Comp Spokes, laced to Stan’s Arch EX. I had the opportunity to pedal the bike down a short section of section of trail. Very impressed with the quality of the build and buttery smoothness of this hub.

David - 12/11/12 - 9:22am

I thought you had to re-dish the wheel when switching to xx1. Sounds like you just replaced the freehub body? Is that enough?

dogboy - 12/11/12 - 9:58am

@David

No need to re-dish a wheel when switching over to the XD1 freehub. You do need to re-dish on an 11-speed road wheel using the new Shimano standard.

MulletRacer - 12/11/12 - 10:18am

F that.
FIXIE 4 LYFE!

junkshow - 12/18/12 - 3:33pm

@dogboy,
Most wheels designed for Campy 11 do not require re-dishing for Shimano 11 (HG-EV) cassette bodies.

erwin - 03/26/13 - 4:09am

any link or video how to replace the free hub body?

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