SOC13: Open Cycles’ AXX1 Mountain Bikes Weigh In, Plus Custom White Dual Electronic Build!
Open Cycles’ announced the AXX1 build in March, using a mix of SRAM XX1 and AX Lightness bits to come up with the name and bring a 16.2lb bike to market. At Sea Otter, we put it on the scale to verify, and snapped some closeup photos. Those are further down in the post.
What really popped out was the sole white painted model, which is a completely custom build from the folks at Pro Bike Supply in New Port Beach, CA. It incorporates Shimano’s Di2 internal seatpost battery with a splitter to power both the Fox iCD shock lockout and the Ultegra Di2 group. Calfee provided the internal battery mount.
It uses the Ki2 adapters and S3-to-braze on adapter for the front derailleur, with a rubber padding between the mount and the frame to reinforce it against the derailleur’s massive (for its size) motor torque.
Check that, plus THM’s new XX1 crankset and more new product news, below…
Open’s frames have to meet a no-more-than-35g-added-from-paint standard for their black frames, so any that don’t meet that standard are then painted in white. Total weight gain from paint over approved black frames is about 80g to 100g, but the price drops from $2,900 to $2,500 for the frame.
Because Fox uses the new E-Tube wiring, they could simply loop together two junction boxes inside the frame to make everything run off a single battery.
The battery and electronic parts on a really, really nice but not the lightest build all add up to a 20.83lb (9.45kg) bike, with pedals. The complete bike would be about $11,500 to $12,000. This is a one-off, not something they plan to produce…but if your pockets are deep enough, pretty sure PBS would build one up for you.
The last time we posted this bike, the THM Clavicula crank was running a standard spider and chainring, but now they’ve got the XX1 models, giving you access to the full range of SRAM’s 11-speed MTB cranks:
The only downside to this build (other than the price, perhaps) is that some of the AX Lightness parts have rider weight limits below those of the frame. This one’s for the skinny people.
Having been involved with Cannondale in a past life, they were able to get a custom matte black Lefty fork.
Claimed weight is 16.09lbs, but this one came in at 16.29lbs (7.4kg). There’s a good chance the bike had 0.2lbs of dust from Sea Otter on it, so we’ll forgive the overage. It’s still pretty otherworldly to pick up a bike this light. C0-founder Andy Kessler wasn’t exactly struggling to hold the scale.
In other news, Open Cycles let us know they are working on a full suspension bike. They’re playing with designs now, and there’s no timeline or details at the moment. All they’d say is that they’re working on it.