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Carbon Wasp Announces New Titanium Cranks for the Pinion Gearbox

Oct 10, 2023 at 15:48
by Carbonwasp  
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Carbon Wasp's new titanium cranks for the Pinion gearbox.


PRESS RELEASE: Carbon Wasp

Finally, you say: Some aftermarket cranks for the Pinion gearbox! (And only 280g for the pair)

We love the Pinion gearbox here at Carbon Wasp – it gives you a huge range of gears in a maintenance-free package that will run and run. Whilst we don’t see anyone racing XC on one anytime soon, it’s perfect for a winter hardtail or long travel enduro/DH bikes. Those use-cases make the most of the benefits of the system and mitigate the drawbacks. We’ve been making and riding carbon fibre hardtail frames with Pinion gearboxes for years and we’ve been making carbon cranks to fit them for nearly as long. The two main drawbacks of the gearbox system for us have always been the shifter – with a grip shift previously the only option – and the overall system weight – whilst the weight is central and low down on the bike, you’ve still got to carry it around. Pinion have solved the first problem with their electronic trigger shifter, and we can help with the second, by making aftermarket parts to save some weight, starting with cranks.

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Titanium cranks are available in a range of standard lengths, as well as custom lengths/widths.

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There were several stages of prototypes to get the logo the right size.

While we had some early success with carbon fibre cranks, we could never quite get it right. It was a story as old as time - bonding aluminium inserts into carbon fibre cranks. We tried it all and eventually started thinking about making the metal inserts larger, so they would be better held inside the carbon crank arms. One day we thought the unthinkable.. make the metal inserts at either end of the crank so long that they joined up in the middle and did away with the carbon altogether. We started to look at making lightweight metal cranks and fairly quickly got into 3D printed titanium. We’ve long been interested in 3D-printing, we started off years ago using printed moulds for custom parts and have used printing as part of our process ever since, for prototyping and development as well as making tools and fixtures. Metal 3D printing has become far more accessible in recent years and will continue to do so and now seems to be a good time to start to use it as a process for certain end parts.

After doing some sums and then prototyping, we realised we could make hollow titanium cranks as light as anything we could do in carbon, without the problems of fitting inserts. Metal cranks had the added benefit of being more robust than carbon fibre, in an area that is very exposed to impacts.

3D Printed Titanium Cranks for Pinion Gearbox

• Direct replacement for stock Pinion cranks

• 3D printed from titanium (using lasers)

• Weight: 280g per pair (saving around 170g)

• Available now in 165, 170 & 175mm lengths

• Also available in custom length/widths

• Costs: £650 (GBP)
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Available now. But only for the Pinion gearbox,

For more information click here.

Author Info:
Carbonwasp avatar

Member since Dec 17, 2015
1 articles

45 Comments
  • 62 0
 Does Ti Wasp make the carbon versions?
  • 31 0
 Yes, but what does the *inside* of the crank look like? Us engineering and additive nerds know that it’s not solid. Show us your infill lattice!
  • 1 0
 Could they get a complex internal structure and still get the excess powder out? I thought these metal 3D prints used some form of powder sintering, which would leave a bunch of heavy powder in the internal volumes.
  • 2 0
 @quinnltd: i think drilling a hole and using the same ultrasonic shakers used for sandcasting engine blocks would work
  • 1 0
 They slice that with Cura????
  • 25 0
 They really need a few cats with lasers shooting from their eyes for proper street cred.
  • 2 0
 Cats with Freaky Deaky Laser beams at that!!
  • 2 0
 @Jaybirdy: happy to find this AP Reference, scrolling over
  • 21 2
 Seeing as they're calling out the logo in the press release, I wonder if a debossed (below flush) logo be kinder on shoes while looking better in the long run? I'm pretty duck footed and just looking at those raised, sharp edges make my ankles hurt.
  • 10 2
 [insert "ebike" and "pedaling" jokes below]
  • 3 0
 For real. Say goodbye to your shoes.
  • 1 0
 Nevermind, same style different standards.
  • 11 0
 Or just laser etch and skip the emboss/deboss to avoid all those tiny corners / mud traps in either direction.
  • 18 0
 That's like ordering a double baconater and holding one slice of cheese
  • 5 0
 I disagree, but this comment was too awesome not to upvote
  • 3 0
 As if the weight of the crabks matters... The pinion gearbox is made of the stuff that Nibbler poops. I was astonished when I removed mine to send it in for warranty when it failed. 2,7kg if I remember correctly, and I think that was without cranks.
  • 1 0
 The newer C9 version is 2kg (with a 568% range)
  • 3 0
 Well done @carbonwasp this is a great press release, fairly tongue in cheek.
I wonder if they can make me some 162.5mm cranks arms, as those are the perfect length for really aggressive enduro style riding!
  • 4 0
 Would 100% buy these for my normal drivetrain.
  • 6 4
 Finally a brand making 175's. All this short crank hype and these guys get it.
  • 4 1
 or perhaps they "get" that some old school riders still insist on riding long cranks.
  • 1 0
 Cool idea but can't say I love the look. It reminds me of one of those WWII bikes people would ride around Europe (e.g., has a black and white movie look/feel).
  • 3 1
 where is my pinion e-gearbox bike
  • 4 0
 @tpfenning: huh. bulls has one as well:

pinion.eu/bike_selection/bulls-vuca-evo-am-2

the future is here, it seems. i'm not about to buy an ebike any day soon, but when i do, it's certainly not going to have a derailleur. cool tech.
  • 3 1
 HECK YES! MOUNTAIN BIKING IS SO COOL KEEP MAKING RAD STUFF LETS GOOO
  • 1 0
 lets be honest, how many people are actually gonna buy this?
  • 2 1
 Cranks people won't buy for components, people can't buy. you will see exactly zero of these at your local trails. I still haven't seen a set of ewings in the wild.
  • 2 0
 I will. Been waiting for aftermarket cranks for some time. No one will make them for the Pinion even if you have the numbers for a small run. Ignite was the only one to even consider it. FYI I did not ask Hope.
  • 2 0
 Last trailride I was on had three sets of eewings in the group. We out here.
  • 1 0
 I might if they made them shorter, I'm riding 160's now.
  • 1 0
 @sherbet: What's the big draw to eewings? E13 XCX cranks are lighter and cheaper. I'm just curious.
  • 2 1
 @warmerdamj: Strength and stiffness. I've had two crashes on my eewings that would have legitimately written off any carbon crank on the market, and likely any hollow alloy options as well. My crank was a bit scuffed up, but when I contacted CC about it, they more or less said "yeah that's barely surface damage, don't worry about it at all." Crank then got run for another season before selling it to a coworker, who has put some SERIOUS abuse into them.

No carbon crank on the market can offer that. If I had XCX cranks, I'd be in the same price all said and done by now as I am on the eewings, while these are still a more stiff option, and frankly, they're fucking gorgeous and everything I said here is second place to that fact.
  • 1 0
 Have the carbon version they made. Will buy these.
  • 1 0
 New era of titaniun. Titanium 2.0
  • 1 1
 often wondered why this process is called 3D printing an not 3D welding..... not like these cranks are made of ink :'D
  • 3 0
 p.s LOVE the pinch bolt desighn
  • 1 0
 This is the ultimate definition of a niche product.
  • 2 0
 Ti + C, sounds cheap
  • 1 0
 Those look neat and fast like Italics.
  • 1 0
 Talk about niche
  • 1 0
 Totes. I splurged on a Zerode, but these are too rich for my blood.
  • 1 0
 I wish they were $300.
  • 8 0
 They are. Each.
  • 2 0
 @nozes: Touche! :-)







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