Home Cycling Interview | Mic Williams on the Trinity Gravity & Future Williams Racing Merchandise Improvements

Interview | Mic Williams on the Trinity Gravity & Future Williams Racing Merchandise Improvements

Interview | Mic Williams on the Trinity Gravity & Future Williams Racing Merchandise Improvements


Mic Williams is one-third of Trinity MTB, a comparatively new mountain bike producer that has garnered a lot consideration over the past yr or so following the launch of its debut body; the Trinity Gravity. Whereas Mic is an integral a part of the Australian outfit, bringing highly-innovative drivetrain options to the desk, he’s additionally the founding father of Williams Racing Merchandise (WRP).

In 2019, the UCI abolished the rule that bikes should have the identical entrance and rear wheel dimension for Downhill World Cup. Again then, Mic noticed a chance to fabricate suspension hyperlinks to make the now ubiquitous mullet configuration attainable. WRP made a reputation for itself by supplying mullet hyperlinks for DH frames, and later enduro frames, earlier than the business began producing mullet-dedicated bikes that had been designed from the bottom up. That is WRP’s bread and butter, and cash comprised of the sale of those hyperlinks is poured again into the corporate to develop new, and much more revolutionary parts for performance-oriented mountain bikes.

Certainly, Mic and WRP are serious about excess of suspension hyperlinks. A born innovator, Mic is consistently tinkering with new concepts, a few of that are mentioned on this interview. From an electronic-shifting cassette-based gearbox(es), to really drag-free hub internals, and pedal kickback options, Mic has his palms in an excellent many pies.

And, as you may think, Mic’s roles inside Trinity MTB and WRP very a lot go hand-in-hand, with Mic contributing concepts and engineering-based options to the present (and future) Trinity mountain bikes.

 mic williams with trinity dh bike he helped design
Mic Williams with an earlier prototype of the Trinity Gravity DH Bike. His position focuses on growth. One other member of the Australian outfit is Nigel Petrie, an professional fabricator higher recognized on the planet of motorsport for his customized automobile fabrication and drifting. The third and closing member is Chase Warner, the person behind the Gravity’s Digital Excessive Pivot linkage design.

Bikerumor: What was it that originally attracted you to the Trinity DH bike challenge?

Mic Williams: The chance to work with the opposite two guys concerned. I all the time thought a efficiency gravity body was out of my league, and alone it’s, however when the dialog began with Chase and Nigel I immediately had religion in our little workforce that we might make one thing particular occur.

From a design perspective, the very first thing that stood out to me was the VHP (Digital Excessive Pivot) platform and mixing that with an i-Observe loafer design. That was a really new concept that Chase had dropped at the desk, and it offered a kinematic and sure coefficients that immediately had me hooked on the challenge.

Editor’s Be aware: See above how the loafer pulley strikes in relation to the underside bracket and rear axle because the linkage articulates. This facet of the Trinity Gravity bike’s Digital Excessive Pivot linkage is patented by i-track. This offers unbiased management of the anti-squat attribute, permitting it to be tuned independently of axle path and different kinematic properties.

Bikerumor: Will Trinity persist with DH frames, or are there plans to make bikes for different sorts of mountain biking?

Mic Williams: The body we now have on provide now will be configured as both a DH bike or a big journey Enduro bike. The body has a flip chip whereby the shopper can alternate between a 205mm x 65mm shock (175mm journey) or a 225mm x 75mm shock (200mm journey). Contemplating the kinematic we’re capable of obtain with the mix VHP and i-Observe, we’re capable of get a fantastically descending bike that additionally pedals very effectively.

trinity dh bike with prototype wrp electronic shifting gearbox
The Trinity Gravity frameset is appropriate with each sort of drivetrain in the marketplace: conventional 1x (7-12 pace), Pinion C-Line, Effigear Mimic, in addition to WRP’s quickly to be launched gearbox (proven right here). Swapping out proprietary facet plates permits the body to adapt to completely different drivetrains.

Bikerumor: It’s cool that you just guys provide each conventional drivetrain and gearbox choices for the body. Kinematically, are there any large variations in how the 2 bikes trip?

Mic Williams: Kinematically, no, because the chainring sits in the identical relative location in both configuration. Assuming identical dimension chainrings, kinematics would be the identical. The gearbox choice provides a unique trip attribute, nevertheless, because of the centralized mass (and decreased unsprung mass of the cassette and derailleur) and the very fact the chainring can roll ahead because of the inherent nature of a gearbox’s clutch. 

wrp prototype 6speed gearbox electronic shifting

Bikerumor: We all know you’ve been engaged on a gearbox of your very personal design for a while now. Are you able to inform us a bit about the way it works, and the way it’s useful over present gearbox choices in the marketplace like Pinion, for instance?

Mic Williams: Yea, certain factor. I’ve been working alone WRP field for a short while, which has similarities in precept to the Honda gearbox within the RN-01 from ~20 years in the past. So it makes use of an ordinary chainring, chain and cassette that’s simply reconfigured to mount within the BB space (related to a Pinion or Effigear).

I’m a giant fan of present gearbox manufacturers, however the goal of this design is to attain much less drag that’s inherent in present gearboxes because of their meshing gears, and a design that may be shifted below load – one other disadvantage with present gearboxes. With the WRP field weight also needs to be lots much less contemplating it doesn’t must be immersed in a shower of oil and there’s no “derailleur” as such. It’s additionally absolutely digital.

Bikerumor: Will your gearbox design assist you to do one thing kinematically advantageous with the Trinity bike that you just can’t do with off-the-shelf gearboxes?

Mic Williams: The twin-directional CentreHub will finally be within the WRP gearbox, so zero pedal kickback will have the ability to be achieved (and the choice of shifting whereas coasting, too). Opposite to widespread perception, an loafer doesn’t remove pedal kick-back, solely helps mitigate it.

Bikerumor: Your gearbox prototype for the DH Bike is 6-speed. Will you additionally develop the same gearbox for enduro bikes with a wider vary cassette?

Mic Williams: Sure, one with ~500% vary is within the works.

Bikerumor: The gearbox isn’t the primary piece of drivetrain expertise you’ve labored on. The CenterHub was considered one of WRP’s very first merchandise to hit the market. And now, it appears you might be engaged on Gen 2 of that product. Are you able to inform us what the brand new CenterHub provides that the unique was missing, and when can we purchase it?

Mic Williams: Sure, as talked about above we’re engaged on a CentreHub V2 that may rotate bi-directionally. The CentreHub V1 was made whereas I used to be at uni and realistically the catalyst for me beginning WRP. It’s an excellent product that I (and many individuals around the globe) run on private bikes.

For its meant objective and authentic design scope (to supply shifting whereas coasting), the V1 is unbelievable and couldn’t actually be optimized. So, it doesn’t lack something per-say; however in typical style of design development I contemplated the concept of whether or not it was attainable to make it go backwards as effectively – to remove pedal kick-back. The prototyped V2 is a product that may go each methods and have interaction with very restricted pedal hole (so anti-squat isn’t affected). We don’t have a tough launch date at this stage.

Bikerumor: Are you engaged on another new drivetrain developments for the time being that you’ll be able to share with us?

Mic Williams: Folks could have seen some particular DT internals we’re engaged on. Can’t give an excessive amount of else away.

Bikerumor: We see you’ve been testing out a steering damper from WP. Do you are feeling there’s actual justification for utilizing such a damper in DH?

Mic Williams: Yea I feel so, undoubtedly. They’re clearly used extensively in motocross and off-road motorcycling, and the response we’ve had from skilled racers and groups wanting to check it has been overwhelming. From my very own private take a look at knowledge the distinction (and potential in growth) has been profound, particularly relying on monitor sort (excessive pace with rocks that attempt to seize your entrance wheel, for instance).

Bikerumor: We additionally see you teased some stiffness knowledge for an USD fork with a linkage. Is that this in regard to a brand new product you’re engaged on?

Mic Williams: No not in regard to a brand new product (but, at the least). My present intern, Mitch, got here to me with the concept for his Bachelor of Engineering Thesis. I assumed it had some actual legs (excuse the pun) contemplating another concepts we’d thrown round about find out how to tune and improve the torsional stiffness of a USD fork.

mic william racing products interbview trinity dh bike vhp i-track prototype gearbox

Bikerumor: What do you assume DH bikes of the long run will appear like, and the way will WRP be part of that?

Mic Williams: It’s laborious to crystal ball something, however taking a look at current traits and cross-disciplinary I feel is vital. I feel that present bike tech so far as geo is anxious is superb. In case you examine to motocross, whereas there has clearly been updates to expertise, the fundamental geometry of the machine has been pretty-well stable for the final 20 years as all manufacturers actually settled on what most closely fits the biomechanics of a human – I really feel we’re approaching the identical level with MTB geometry (possibly even gone a bit too far in current instances).

So, I don’t assume we’ll see enormous developments in geo, however more-so in tech and that’s largely the place my focus is at with the gearbox, and so forth. So far as how WRP will likely be a part of it; I really like bikes and am not going anyplace.

Bikerumor: Are there any present UCI guidelines you are feeling are limiting innovation within the MTB house that you just’d wish to see abolished?

Mic Williams: Not that I’m conscious of at this stage. I feel the relinquishing of the identical dimension entrance and rear wheel rule in 2019 was an excellent factor. I do admit I would like to take a look at the latest rule-book although; there might all the time be an excellent thought proper under-the-nose of the foundations.




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