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World Cup Pro Bike Check: Anton Cooper’s super slammed Trek Supercaliber

Anton Cooper Trek Supercaliber Full
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Anton Cooper is one of the crowd favorites at every race,  you never know if it will be his day to shine. The 27-year-old New Zealander has a distinguished CV; in 2012 he won the World Junior Cross-Country Mountain Bike Championships, and in 2015 the Under 23 World Cross-Country Mountain Bike Championships — he’s fast.

Anton Cooper Trek Supercaliber Full full bike side

Besides his fantastic talent, Anton is known as one of the feistiest riders on the circuit, never afraid to take the best in the world to a sprint finish — ie. the 2018 MTB World Cup in Nové Město. The New Zealander usually favors his Trek Procaliber hardtail for most World Cups but went with the Supercaliber for the rocky track in West Virginia.

Anton Cooper Trek Supercaliber Full logo and name

Cooper has always had an exciting bike setup, mainly because he’s a bit shorter than most and likes to ride an aggressively slammed bar to get the right drop.

Anton Cooper Trek Supercaliber Full stem close up

Trek has some of the shortest head tubes in the industry (90mm to be exact) on their small bikes to help accommodate aggressive setups.

Anton Cooper Trek Supercaliber Full bar setup

If you’re racing the best in the world, though, you may go the extra mile, and that looks to be what Anton Cooper did here. This CNC machined stem from Darimo looks to be a bit more than the -40/90mm we usually see Cooper riding. We’re assuming the stem is made from aluminum, which is an interesting move from a company that deals exclusively in light weight carbon fiber.

Anton Cooper Trek Supercaliber Full brakelever

Since he favors the Trek Procaliber hardtail so much for most races, we’re wondering if this prototype stem is an attempt to tie those fit numbers closer together. Going from training every day on one bike to racing on another could be hard to get used to, even at the most elite level.

Anton Cooper Trek Supercaliber Full stem and top cap

The stem isn’t the only unique bit on Cooper’s bike, though; he rides narrow (for today’s standards) 680mm Bontrager MTB XXX bars — an older discontinued Bontrager model.

Anton Cooper Trek Supercaliber Full shock and seat binder

The Trek Supercaliber itself is mainly stock for shifting and braking bits, minus the oil slick ti-bolt upgrades. The seat post clamp, however, is not. When we spoke with Trek Factory Team mechanic Alvaro, he noted that the clamp weighs in at a feathery light 4g! The company that makes it is Darmino from Spain, the same that makes the super slammed stem.

Anton Cooper Trek Supercaliber Full axel

On closer inspection, the front and rear axles are upgraded with a Carbon-Ti model. It seems that Cooper’s team is looking to maximize any weight savings that are available to him.

Anton Cooper Trek Supercaliber Full chainring

The drive train is a fairly standard SRAM Eagle AXS build with a 38T direct mount front chainring — no power meter here.

Anton Cooper Trek Supercaliber Full cassette

The build is very similar to Jolanda Neff’s Supercaliber, with Nokon segmented housing to keep cables traveling smooth.

Anton Cooper Trek Supercaliber Full derail

Cooper goes with the stock RockShox push lockout instead of the grip lock like Neff. We’re guessing because Cooper rides without a dropper, or did for this World Cup.

Anton Cooper Trek Supercaliber Full tire choices

For the Snowshoe World Cup, Cooper rolled on Bontrager XR3 tires and Bontrager Kovee XXX wheels for max grip on the punchy, slick climbs.

Anton Cooper Trek Supercaliber Full pedals

Cooper’s pedal choice is the same as Neff’s and others on the team, the Bontrager XC pedal with a custom Ti-spindle and oil slick finish.

Anton Cooper Trek Supercaliber Full valves

Full Specs — Anton Cooper’s Trek Supercaliber

  • Frame: Trek Super Caliber Size 15
  • Fork: Rock Shox Sid Ultimate 100mm
  • Stem: Darimo – 40/90mm
  • Grips: ESI Tappered
  • Brakes: SRAM Level Ultimate
  • Shifting: SRAM AXS Eagle
  • Pedals: Bontrager Custom Ti-spindle
  • Bars: Bontrager XXX 680
  • Seat: Bontrager Aeolus Carbon

Make sure to check out our other World Cup Pro Bike Checks.

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2 years ago

No weight?

2 years ago

Thanks for continuing to show us what the pros ride. Is there a reason you don’t typically weigh these bikes? That would be very interesting.

2 years ago


Alvaro Serna
Alvaro Serna
2 years ago

Darimo, repeat with me…Da-ri-mo…it’s easy. 🙂

2 years ago

soooo… he’s basically riding Jolanda’s bike with another stem and paint scheme 🙂

2 years ago

What is that suspension fork damper?

Sergio Cruz (@sergiocrz3)

Como on! Now go back and weight the bike! Thanks

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