ZhERO Rear bicycle hub (ZERO LAG) project video thumbnail
Replay with sound
Play with
sound
AU$ 2,155 pledged of AU$ 155,000 goal
backers
By Kevin J Hancett
AU$ 2,155 pledged of AU$ 155,000 goal
backers

About this project

Was to take a FRESH but simple approach to building a zero lag hub that would optimise the transfer of the torque/power that human beings generate from pedalling a bike. Brainstorming our ideas, designs & prototypes quickly showed instant engagement was a positive result. Testing the functionality of several components & materials while considering a variety of designs possibilities would prove invaluable to the project.

Working tirelessly with our design team forever keeping in mind three factors, Reliability, Durability & weight.  Years on from the initial drawings & many changes after undertaking an extensive research / development & test programs our final design ticks all those boxes.

Today we are fully tooled for production with a world beater that stands alone from any other rear bicycle hub on the market.

 project video thumbnail
Replay with sound
Play with
sound
 project video thumbnail
Replay with sound
Play with
sound

The easiest way to explain how the ZhERO works. There are several ceramic infused needle rollers sitting at the base of Nitrogen treated cams. When load is applied, the rollers run up the cams and jam between the outer and inner bodies, creating drive. At freewheel they sit idle. This action is similar to tightening a bottle top with our hand, however the loads are far greater and shared over multiple points of contact.

Gravity-Zero manufacturers the ZhERO & DO NOT use off the shelf clutch bearings for our hubs. 

The ZhERO's ceramic infusion & Nitrogen combination is the world's most mechanical advanced purpose built ZERO lag mechanism ever made & without question improves the riders performance from the first turn of the pedals to the last. The ZhERO hub can be fitted to all rims with conventional or hidden nipples that have a matching spoke count.

To support our findings we employed the services of the Victorian University (Sports Engineering & Technology Unit) to evaluate a Reference Hub ( Shimano Durace ) against a ZhERO (Test hub) & the Hub Evaluation Report showed a massive improvement in torque.

In the field it gets better. The smoothness of the ZhERO eliminates the shock of lock up through your back, legs, muscles & joints. The cluck of changing gears is halved as the chain just drops to another gear whereas conventional hubs need to reload power. Your muscles are switched on earlier with each pedal stroke forcing both legs to work as one. Hill climbing you can dance from pedal to pedal equally without experiencing any form of lag, one experienced rider liken it to running on the bike.

From a Social rider to Road racing, Triathlete, TT specialist or Criterium the mechanical precision that the ZhERO brings will increase your endurance, performance & all round wellbeing on the bike.

Tests carried out by the Victorian University ( Sports & Engineering & Technology Unit)

Reference Hub = Shimano Durace hub ( red line ) Test Hub = Zero lag hub (white line)

Graph #1 clearly shows the negative torque or lag time to a Dur ace hub. Expanded wave forms during the transition from backward pedalling indicated by negative torque to peak torque output.   

Victorian University Hub Valuation Report
Victorian University Hub Valuation Report

 Graph #2 Expanded scale shows wave forms during constant cadence trial at 90 rpm

Victorian University Hub Valuation Report
Victorian University Hub Valuation Report

DT SWISS                                   10 degrees lag

SHIMANO DURACE                   10 degrees lag

ZhERO                                        O/zero degrees lag

ZIPP                                            10 degrees lag

Mavic                                          7.5 degrees lag

Campy                                        12 degrees lag

Novatec                                      13 degrees lag

ZhERO ( zero lag rear road hub )

Lag degrees                                           Zero degree 

Weight                                                     265g

Sealed Bearings                                      x 4

Ceramic Bearings ( Optional )                 x 4

Spoke hole options                                 20, 24, 28

Gauge                                                     14

O.L.D                                                      130mm

Axle                                                         15mm

Axle Material                                           AL7075

P.C.D                                                      35.5/50

Pawls                                                      16

Cassette Body                                        AL7075

Cassette Compatibility                           Shimano/Sram 10/11sp

ZhERO log                                             Lazed Engraved

 project video thumbnail
Replay with sound
Play with
sound
Kevin J Hancett Mechanical Engineer, Sales & Marketing Diploma
Kevin J Hancett Mechanical Engineer, Sales & Marketing Diploma
Dean Michie Diploma's in Occupational & Environmental Health, Mechanical Engineering Management
Dean Michie Diploma's in Occupational & Environmental Health, Mechanical Engineering Management
Romano Studer Graphic Artist, Cad Drawing Specialist
Romano Studer Graphic Artist, Cad Drawing Specialist
Wayne Hardman.Third generation Manufacturing Guru. Cert IV in Mechanical Engineering and a Cert IV in Competitive Manufacturing
Wayne Hardman.Third generation Manufacturing Guru. Cert IV in Mechanical Engineering and a Cert IV in Competitive Manufacturing
Shane Young ( TT's, Crits & road racing specialist )
Shane Young ( TT's, Crits & road racing specialist )

"The ZhERO is most responsive hub I have ever ridden, from Crits to road racing there is no other way to explain it, the smoothness & efficiency is simply amazing from the instant zero lag mechanism. I would highly recommend the ZhERO to anyone that rides a bike."

Clinton Watson ( Physiotherapist, Professional Triathlon coach & multiple Ironman starter/finisher)
Clinton Watson ( Physiotherapist, Professional Triathlon coach & multiple Ironman starter/finisher)

 "Having tested the ZhERO & knowing that it takes 54,000 pedal strokes to complete the 180ks bike leg in a Ironman...... it is a no brainer for me I'd choose the ZhERO hub ever time because not only am I more efficient on the bike,  my legs would be more balanced, less fatigued & fresher for the 42ks run."

Michelle Lacey ( Myotherapist & Multiple Cycle racing/Triathlon Champion)
Michelle Lacey ( Myotherapist & Multiple Cycle racing/Triathlon Champion)

"Having tested, trained & raced on the ZhERO from its early conception it's been a secret weapon that I would NEVER start a race without. The gain in efficency has only enhanced my cycling & triathlon career."

Jim McMurray double World Champion.
Jim McMurray double World Champion.

"Supplied with a set of ZhERO hubs built into Gravity-Zero 50mm full carbon clinchers these are the best hill climbing clinchers wheels I have ever ridden"

Risks and challenges

Though the manufacturing processes to produce bicycle hubs are centuries old, there are very few who can deliver this level of craftsmanship/precision required for such a design. Our manufacturing partners are 100% committed to our project, but like all manufacturers, they have their own process of prioritizing the order of projects they work on. The biggest risk to shipping on the stated delivery date is the supply of raw materials & production capacity or scheduling of our actual order.
For those of you who are a new to one such project, we have a lot of professional product development experience and like to communicate often. All of our previous projects have shipped on time.
Your pledge is in very good hands!

Learn about accountability on Kickstarter

Questions about this project? Check out the FAQ

Support this project

  1. Select this reward

    Pledge AU$ 20 or more About $16

    1 X ZhERO CAP

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 2 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  2. Select this reward

    Pledge AU$ 30 or more About $23

    1 X ZhERO TEE SHIRT

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 2 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  3. Select this reward

    Pledge AU$ 395 or more About $309

    SUPER EARLY BIRD 1 X ZhERO hub kit (20 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  4. Select this reward

    Pledge AU$ 395 or more About $309

    SUPER EARLY BIRD 1 X ZhERO hub kit (24 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 1 backer
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  5. Select this reward

    Pledge AU$ 395 or more About $309

    SUPER EARLY BIRD 1 X ZhERO hub kit (28 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 3 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  6. Select this reward

    Pledge AU$ 425 or more About $333

    EARLY BIRD 1 X ZhERO hub kit (20 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  7. Select this reward

    Pledge AU$ 425 or more About $333

    EARLY BIRD 1 X ZhERO hub kit (24 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  8. Select this reward

    Pledge AU$ 425 or more About $333

    EARLY BIRD 1 X ZhERO hub kit (28 spoke holes )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  9. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD 1 X ZhERO hub kit (20 spoke holes ) CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  10. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD 1 X ZhERO hub kit (24 spoke holes ) CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 1 backer
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  11. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD 1 X ZhERO hub kit (28 spoke holes ) CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  12. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD
    1 x ZhERO hub set ( 24/20 spoke holes)

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  13. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD
    1X ZhERO hub set ( 24/20 spoke count )

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  14. Select this reward

    Pledge AU$ 475 or more About $372

    SUPER EARLY BIRD
    1 X ZhERO hub set ( 28/24 spoke count)

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  15. Select this reward

    Pledge AU$ 505 or more About $395

    EARLY BIRD
    1 X ZhERO rear hub (20 spoke holes) CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  16. Select this reward

    Pledge AU$ 505 or more About $395

    EARLY BIRD
    1 X ZhERO rear hub (24 spoke holes)
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  17. Select this reward

    Pledge AU$ 505 or more About $395

    EARLY BIRD
    1 X ZhERO rear hub ( 28 spoke holes )
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  18. Select this reward

    Pledge AU$ 510 or more About $399

    EARLY BIRD
    1 X ZhERO hub set (24/20 spoke count)

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  19. Select this reward

    Pledge AU$ 510 or more About $399

    EARLY BIRD
    1 X ZhERO hub set (28/24 spoke count)

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  20. Select this reward

    Pledge AU$ 595 or more About $466

    SUPER EARLY BIRD
    1 X ZhERO hub set (24/20 spoke count)
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  21. Select this reward

    Pledge AU$ 595 or more About $466

    SUPER EARLY BIRD
    1 X ZhERO hub set (28/24 spoke count)
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  22. Select this reward

    Pledge AU$ 625 or more About $489

    EARLY BIRD
    1 X ZhERO hub set (24/20 spoke count)
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  23. Select this reward

    Pledge AU$ 625 or more About $489

    EARLY BIRD
    1 X ZhERO hub set (28/24 spoke count)
    CERAMIC BEARINGS

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  24. Select this reward

    Pledge AU$ 1,895 or more About $1,483

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 50mm (tubular)rims, 1 x ZhERO hub set, (24/20 spoke count)
    Weight 1265g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  25. Select this reward

    Pledge AU$ 1,895 or more About $1,483

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 50mm (clincher)rims, 1 x ZhERO hub set, (24/20 spoke count)
    Weight 1595g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  26. Select this reward

    Pledge AU$ 1,995 or more About $1,561

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 50mm (tubular)rims, 1 x ZhERO hub set, (24/20 spoke count)
    CERAMIC BEARINGS
    Weight 1265g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  27. Select this reward

    Pledge AU$ 1,995 or more About $1,561

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 50mm (clincher)rims, 1 x ZhERO hub set, (24/20 spoke count)
    CERAMIC BEARINGS
    Weight 1595g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  28. Select this reward

    Pledge AU$ 1,995 or more About $1,561

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 85/50mm (tubular)rims, 1 x ZhERO hub set, (24/20 spoke count)
    Weight 1465g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  29. Select this reward

    Pledge AU$ 1,995 or more About $1,561

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 80/50mm (clincher)rims, 1 x ZhERO hub set, (24/20 spoke count)
    Weight 1625g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  30. Select this reward

    Pledge AU$ 2,095 or more About $1,640

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 85/50mm (tubular)rims, 1 x ZhERO hub set, (24/20 spoke count)
    CERAMIC BEARINGS
    Weight 1465g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  31. Select this reward

    Pledge AU$ 2,095 or more About $1,640

    SUPER EARLY BIRD Gravity-Zero UCI/ITU approved 80/50mm (clincher)rims, 1 x ZhERO hub set, (24/20 spoke count)
    CERAMIC BEARINGS
    Weight 1625g

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 0 backers
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.

Funding period

- (60 days)