Bike Check: 2 Pumptrack Machines from Evil & Pivot - Crankworx Rotorua 2019

Mar 25, 2019
by Daniel Sapp  


The "Pumptrack Challenge" started off several years back and is now a staple event with tight head-to-head racing and a huge crowd at each stop of Crankworx. Historically, the bikes that riders have used for the competition have simply been their slalom or dirt jump bikes sans-chain. This is still largely the case with many competitors such as Kialani Hines, whose bike is one of the two below, but a few riders, such as Bubba Warren and Kyle Strait have built up bikes made specifically for competing on the pumptrack.

It only makes sense as it's a tight competition with not only a podium spot but also money and points towards the King or Queen of Crankworx on the line. While Bubba's bike is very purpose built, Kialani's is still aimed at the event while also being a bit more versatile and able to have a chain thrown back on to pedal.

Check out Bubba and Kialani's bikes below.

Evil Faction Details

One of the things that really sets Bubba's Evil Faction apart is the hubs. Bubba and Daniel from Onyx decided that it made sense to have a hub just for pumptrack. They designed an axle to go through a front hub that fit the 135mm rear end. This allowed them to lose the chain, cassette, chainring and strip the bike down to the bare minimum. The hubs have ceramic bearings which help them roll a bit faster than a standard hub.


The cranks are adjusted to where they take some effort to spin. Bubba says that this helps with starts in the gate and the resistance helps it feel a lot more like a standard geared bike and it helps prevent going over the bars from inadvertently ghost pedaling.

We're seeing more and more riders on prototype Kenda tires lately. Kenda has been putting a lot of effort into their R&D recently and is producing tires that should be up to the task of top-level competition. 61psi in the back and 60 up front with tubes to ensure there's no feeling of rolling the tire off the bead when pushing into berms.

160 psi and four tokens along with a lot of compression with pretty slow rebound.

SRAM Level brakes keep the weight down - the front brake is key for pumptrack racing since riders are pushing so hard out of the gate to start.





Kialani around the back berm picking up speed.
Kialani pushing for the gold medal in Rotorua.

Kialani Hines took the women's gold medal in the Crankworx Rotorua Pumptrack Challenge this past week. While her Pivot Point isn't quite as tech-heavy as Bubba's Faction, it's still a unique and purpose-built bike.

Kialani used her Point in both the dual slalom competition earlier in the week as well as the pumptrack. Not a ton of changes were made outside of pulling the shifter, derailleur, and chain off and then some air pressure adjustments that we don't have the exact numbers on. Check out some of the details below.

Pivot Point Details


Down to the minimum for the pumptrack. No shifter, chain, or derailleur. A Deity bar and stem with Shimano XT brakes make up the controls.

Marzocchi suspension up front.



Stan's hubs and wheels.

Pro Pumptrack Podium.
Kialani in the number one spot.





51 Comments

  • + 60
 Man that evil build is impressive! Loving the thougth that went into the build very cool!
  • + 12
 They improved the frame right after I got mine. Of fucking course.
  • + 38
 Pivot Point is a clever name, but I'm still waiting for the Pivot Table.
  • + 21
 Yeti for Dentists, Pivots for accountants lol
  • + 7
 Shouldn’t it be
Pivot Point for dual slalom
Pivot Point Les(chain) for pump track
  • + 30
 That would be an Excel-lent name.
  • + 1
 i don't think you get the point.
  • + 1
 #nerd #iloveit
  • + 1
 I would have loved to play with a Pivot Dashboard.
  • + 14
 Front brake for gate starts......?
Please explain
Been racing 4X an have never used my front brake on a gate start...

Also no rigid forks for a P'track specific bike
  • + 6
 Yeah this front brake thingy confuses me, too. Someone please explain.
  • + 17
 Well they have no chain so gate starts probably involve using both binders to hold the bike still while using their body to gain momentum
  • + 9
 Tomas Lemoine don't need one to win...
  • - 6
flag dobermon (Mar 26, 2019 at 1:22) (Below Threshold)
 One brake and chain is all that the top 3 men needed, luckily no 20" riders were there to blow them out. At least take the cassette off if your going chainless for whatever reason.
  • + 2
 Sponsorship? I remember ProForx, who I think were part of Manitou had a 1000$ bonus for anyone who won a pro BMX race using their forks. Lots of pros ran them welded.
  • - 4
flag DarrellW (Mar 26, 2019 at 1:29) (Below Threshold)
 @dobermon: 20" riders can compete, just not on a 20". It's a bit daft - like holding a trials event where the only wheelsize allowed is 29".
  • + 4
 @jason114: but, doesn't the gate do that...........?
  • + 5
 I know almost nothing about this, but I have to assume that if you use the gate alone for an explosive body-english start and mis-time the gate drop even slightly, you lose huge power. A brake would assure you that timing your leverage works perfectly for your start, even when you're 1/10th of a second off the gate drop.
  • + 1
 @tripleultrasuperboostplusplus: thought about it too... Wait for a confirmation.
  • + 1
 @jason114: this. they are starting much like a slalom skier would. getting their body moving and timing it perfectly with the drop of the gate.
  • + 2
 I think they do a bit of a hop/jump out of the gate rather than just use gravity. I think they use the brake to hold the wheels when trying to do this jump as the gate falls. With no brake applied I think the wheels would roll back when throwing yourself forward with no brakes, just my thoughts on this though
  • + 9
 My chain came off a while ago un-noticed during a descent. I then tried to crank and slipped off my pedal.... My sprocket ripped open my calve pretty good. Best scar I have so far. That chainless shit scares the hell outta me. Very pretty bikes though. Loves me some good pumptrack action.
  • + 12
 You would have enjoyed the triple-ring crankset days with a fully-exposed 44T hungry for your flesh. My worst scar is on the LEFT calf -- go figure that one out.
  • + 8
 so good to see pump track bike checks , can we get more bike checks of the pump track and dual slalom set ups from future rounds please
  • + 4
 Scooter jokes aside... would runing moto style pegs side by side from the bottom bracket be beneficial in any way for pump track?
  • + 2
 I wondered that too. It might make it harder to translate skills from other cycling disciplines though. Also might limit the effect of weighting outside/inside pedals to control traction since not being able to rotate the crank down would effectively raise the bottom bracket.

You could build a frame with a crazy low bb to resolve this maybe, but then you have a scooter...
  • + 4
 Looks like Pivot frame is just a DMR frame with different Branding?
  • + 1
 It is certainly similar to a 26" Sect, it looks to be the same headtube and maybe other frame components, different dropouts and a few other changes though. I would guess as they are both distributed by Upgrade bikes in the UK there is a lot of collaboration on the manufacturing on the frames.
  • + 1
 was just about to comment that, defiantly the same drop outs
  • + 2
 @nojzilla: From what I understand, DMR builds it to pivot's specs.
  • + 2
 Yeah it's a dmr sect they even stamp the serial numbers on the bottom part of the head tube with dmr
  • + 1
 @redwustran: It is not a sect, the sect has horizontal dropouts, the pivot has replaceable dropouts. Compare here: www.dmrbikes.com/Catalogue/Frames/Dirt-Jump/Sect-26-Custom
  • + 1
 Have a look on Pivot's website. They talk about the relationship with DMR. It is build by DMR to Pivot's design and spec.
  • + 1
 I have one, they predate the sect by quite a few years. They’re a bit like the old 898
  • + 1
 that spaced-out rear axle is gross. put an adjustable stem and a brooks saddle on that bike and give it to your neighborhood's resident community college engineering professor. you'll know him by his white beard. barf.
  • + 4
 Love how simple and unfussy that Evil looks
  • + 0
 Needs a rigid fork!
  • + 4
 I looked for pivots on that pivot frame and found none. False advertising.
  • + 1
 Are these cranks spinning or locked in a choosen position? Different positions on the Evil's photos…
Or are they just spinning slow? Then how?
  • + 1
 boy there isn't a lot of prize money for the winners eh? at first it looks like, wow! a hundred thousand doll, oh....
  • - 2
 Its super cool that they run suspension forks on bikes for the pump track. Gauranteed 10% better backside. Like a free softspot to land in.

We really need to think about re-education for all marketing professionals cause they make lawyers look like legit good samaritans. Making sugar coated turds on the daily to sneak in your mouth, infect your brain, then shit out your money.
  • + 1
 Is it because they can’t pedal out of the gate so use front brake to push against? No idea
  • + 2
 Mutiny cranks?? rad
  • + 1
 That Evil is gorgeous....so jealous.
  • + 1
 Slack chain.
  • + 0
 No mention of wheel diameter...........?
  • + 20
 Both 29ers, 21in frames. Should see them in real life, they're massive.
  • - 10
flag DarrellW (Mar 26, 2019 at 3:07) (Below Threshold)
 @pbuser2299: No they won't be. They'll be 26".
  • + 0
 @pbuser2299: I would buy that.

at 6ft4", my little 26" wheeled jump bike looked/felt ridiculous.
It got nicked. I never replaced it Frown
  • + 1
 Sick.

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