I don’t give a rat’s ass about Gravel…
Not that gravel isn’t enjoyable (and, nicely, promoting a crapload of motorcycle gear), however I’m additionally the type of man that’s turned down a dozen invitations to Belgium as a result of F>>ok no, I’m not happening cobbles (within the usually chilly, moist, or uber-dusty dry).
What led me to this construct wasn’t the 1000’s of miles of gorgeous car-less roads that I’ll admit make Gravel Driving WONDERFUL. This was about placing collectively a motorcycle that may get me again on pedals as quick as doable after backbone surgical procedure that required a couple of months for very brittle bone to kind. That meant full-suspension, and it simply so occurred that certainly one of Niner’s MCR-RDO frames was obtainable from JOM at Gravel Bicycle owner.
And there was no likelihood that this rig, with its upgraded fork and hoops was going to run something however a top-line Gravel group… Thus, Shimano’s GRX Di2.
By the way in which… Niner’s MCR-RDO is designed for Mechanical, so be helpful or have a pal like boutique store THE VELO HOUSE in Bay Village Ohio to assist with the construct.
So right here’s the place I get proper to the purpose that this isn’t an all encompassing overview the place I toss out all of the gear ranges… (sure, GRX Di2 has many gears). I’m not going to cowl all the different element choices for GRX (Shimano have mechanical variations, completely different ranges of brake calipers, a number of cranks (and ring combos) and blah blah blah… I’m not going to weigh the elements as Shimano’s numbers are comparatively correct… Actually, if you’d like me to regurgitate a press launch like loads of opinions do, go as an alternative proper to SHIMANO’S GRAVEL PAGE.
As an alternative, I’ll say that what began out as Shimano totally embracing “gravel” and steering away from rehashed highway elements has created one thing that can very probably affect the design and ergonomics of each Shimano and different producers teams… And the point of interest begins right here.
Everybody is aware of Shimano’s levers are flared out… FSA additionally received this proper on their lever design, and I’d guess that would be the development going ahead for everybody.
Whereas the lever kicks out, the highest of the hood portion is considerably wider (expanded floor space) to unfold the load and this space critically SITS FLAT/degree with the bar tops.
Shimano additionally mentions altering the lever’s Pivot, transferring it “up”.
However this sells the total Lever Ergonomic makeover brief. Because the pivot additionally feels prefer it strikes again towards the palm of your hand… AND YOUR HAND DOSENT REST LIKE VIRTUALLY ANY OTHER LEVER.
I’ve a bunch of crap rolling spherical the home… Nevertheless it does afford me a glance via the years at ergonomics…. We now have Etap/Tremendous Report 12/Campagnolo 10 and OLD-OLD Nuovo Report.
The newish equipment has a couple of issues in widespread, all of them have a decrease lever pivot level (together with Shimano)… And so they all put your hand able the place your index and center finger sit excessive up on the lever face… see Etap beneath…
Tremendous Report 12…
Campagnolo 10 will get nearer to placing your hand in the fitting spot than the newer stuff….
And low and behold the Nuovo Report drops your fingers even nearer to the efficient level… However shut isn’t ok… You don’t have any hope of truly stopping with Nuovo Report except you set your fingers all the way in which down the levers to the underside (and squeeze like hell).
After which there’s the brand new GRX…
SAME HAND for all of those… And the fingers not solely sit beneath the pivot, however in addition they sit able to brake with out transferring them even additional down the lever.
There’s additionally a really slight form to the lever itself the place your fingers cross over and downward…
I’ve mid-sized arms and this little reduction part on the lever form (the place most highway levers, just like the one’s above put a bulge) {couples} with the pivot placement to will let you have your arms in a braking place the entire time you’re on the tops…
However none of this works except Shimano change the baseline form of the lever.
Almost all lever-bodies lengthen from the handlebar out towards the actuating lever and tilt FORWARD (WITH YOUR HAND RESTING AT THE TRANSITION AS THE BODY CURVES UP).
Shimano constructed a bit longer huge/flat lever physique to relaxation your hand extra comfortably (all-day-long), then the physique curves MUCH extra aggressively up (nearly backward) versus a ahead tilt on just about all different lever our bodies.
That is the half that I hope will affect all highway/Gravel lever designs going ahead.
I’m undecided if all day consolation & immediate braking entry was what Shimano had in thoughts once they designed this method to permit for higher grip & maintain over tough surfaces, however what they did was beat each different highway/gravel lever for ergonomics.
The massive, differentiated button placements are a plus as nicely.
Perhaps the one space the place I would love a couple of choices is the Grip floor.
How’s a couple of thicker/softer hood cowl with out the treads? Even for Gravel use, reasonably than my myopic situation, a thicker/softer/flatter floor may yield as a lot or extra grip, and extra consolation.
As for the remainder of the equipment, there are tweaks galore to the total drive practice.
Down on the stopping finish, Shimano provide cooling on the Calipers/Pads…
And this set runs with the RT-CL800 Freeza Rotors, which look fairly easy versus the cooling-finned 9000 sequence or the identical rotors with warmth dissipating Paint…
Most people miss the half the place these discs are a 3-piece sandwich that retains weight decrease, whereas shedding warmth and staying comparatively quiet. Both approach, even in heat climate these are fade free even on longer highway descents at velocity (although some might be able to brake poorly sufficient that they will discover a flaw). This model of rotor, mixed with the warmth sinks on the pads makes for a terrific combo that can be much less prone to lure dust/mud than their larger-finned counterparts.
The Rear Mech’s greatest characteristic (past outsized pulleys and geometry that hugs a little bit nearer to the body to keep away from injury) is the adjustable clutch…
Notice the tiny “on” instruction on the unit… Simply above there’s a little lever to show the clutch on to maintain the chain from bouncing. The clutch-on additionally creates a bit extra drag on the chain, so for the highway it goes “off”. However then Shimano perceive that folk will run gravel on something from highway to “WTF are you making an attempt to show…” so, the clutch pressure is adjustable to match your need. There isn’t a-such-thing as a missed shift right here and so-far, no want for a single contact of fine-tuning. (The identical can be true if this had been 12 velocity).
Shimano’s entrance mech operation being excellent is the outcome a complete bunch of little issues… The cage form, the stiffness of the metallic itself and each the velocity and the torque of the motor actuation.
Each the entrance Mech and the Cranks mix for a small however welcome design characteristic. A little bit of extra spacing, transferring the chain rings (subsequently the chain line) away from the body. This provides a little bit of tire clearance, and (as that is now a no brainer alternative for Cyclocross) some mud-space.
Most likely the perfect half about this crank set, aside from that they appear to be titanically strong, is that they don’t seem to be lacking a complete ring.
I’ve NO IDEA why 1x exists. None.
Shimano promote one (or many) within the case you wish to sacrifice a full set of gears… However particularly given the entrance shifting high quality with GRX Di2, 1x is a conceit train.
I attempted to get this crank and mech to overlook a shift… I went up and down a curb whereas; shifting beneath load, shifting altering the load, up shift and down, shifting with excessive and low rear gears, shifting altering BOTH the entrance and rear, for a half hour. I’ve additionally shifted going up or down the curb each time I go away or come residence for a month. This factor has been flawless. (Notice to the oldsters at Barrow Mind and Backbone – This bike is full suspension AND I’m clean…) There’s little weight penalty for 2x however with 1x there may be friction launched to your drive practice with the BIG alternating enamel of most 1x rings (along with greater jumps within the rear ratio not wanted in the event you run 2x) … JUST GIVE YOURSELF ALL THE GEARS.
Additionally, a shout out to Shimano’s Uncover cockpit… Shimano presents a spread of flares, however they’re wise versus a few of the downright absurd flared drops which might be principally seashore cruiser bars.
The Bar, Stem and Seat submit are no-nonsense strong, however nonetheless cheap weight. The belief issue right here is excessive… The submit is well adjusted to the proper angle after which simply stays there as soon as mounted to spec.
There’s additionally the benefit of Shimano’s Di2 bits (battery/bar finish nub) becoming completely (nearly prefer it was made for it…), with out challenge. (Once more, I’ll word this Niner isn’t speculated to take Di2… however with some cautious love and body injury…)
For the previous few years, I’ve been constructing issues with lower-weight supplies (at considerably higher-cost) but it surely’s so good to believe in a solid-conservative design that isn’t missing in efficiency. Particularly given the suspension (and even with greater tires/decrease tire strain on gravel bikes) I’ve no actual want for flex or vibe damping, so a strong alternative is a strong alternative.
The remainder…
I suppose I might speak about battery life however when you’ve got any points with anybody’s E-group battery life at present, you is probably not brilliant sufficient for a number of gears (possibly that is the place 1x is available in?)
Past setting a brand new customary in useful ergonomics, the one factor I can say is that there are 3 colleges of thought relative to electrical drive trains in relation to button urgent effort…. Shimano is the softest/lowest suggestions… SRAM center effort/suggestions and Campagnolo with a bit extra pressure and suggestions. ALL OF THESE REQUIRE little effort to press a button.
The need for a extra agency or much less agency press and tactile suggestions is a private choice. Comfortable/low suggestions doesn’t imply higher or worse… It’s a private factor a bit like Army of us who need some resistance of their trigger-pull (you need it to go off solely whenever you actually imply it – however not be so onerous you pull astray). It’s only a choice factor… The velocity and accuracy of shifting within the prime 3 manufacturers is all superb.
Ah, however then there’s these little guys on GRX Di2… Buttons positioned a little bit out of the way in which of your customary grip, that also needs to be a characteristic on EVERY E-lever from all producers.
Programable buttons on the tops that you need to use for something from shifting up and down the cassette to altering the entrance ring, to laptop operation (Garmin/Wahoo/++).
And relative to the tech/connection aspect, with the wi-fi transmitter (only for communication – there are nonetheless wires on the group set), Shimano is rising that integration/operational capability, tying into a number of companions via widespread transmission requirements.
Actually, whenever you’re speaking about digital drivetrains, it’s not in regards to the simpler/quicker/extra correct shifting (benefits which might be an simple given now) … It’s this cross-platform integration and performance that’s so massively past mechanical teams that there actually isn’t a relative useful comparability to make. Now the digital versus mechanical is solely a price factor versus any type or cheap Professional-Con argument.
Sum of the elements…
–The brakes are superb (x-points for fade/warmth resistance in a less-dirt-grabbing design) – The modulation is a private pref factor and I would love extra stroke between preliminary chunk and lock up. However I do know lots of people that choose what Shimano have right here (together with the additional area between rotos and pad that create a few of the extra squeeze wanted to get to preliminary chunk.
–The shift high quality is VERY good, ridiculously good on the entrance (x-points for velocity) – Get the 2x…
The cockpit gear is superb (X-points for Zero-nonsense performance)
— The Aesthetics are [insert meaningless opinion]…
–The Major level? Shimano have made one-lever to rule all of them (Street or Gravel). The GRX form-factor is it… and everybody else ought to observe it.
You could find extra at: bike.shimano.com
** Store for Shimano GRX at Amazon right here
Have Enjoyable,
Charles Manantan
[email protected]
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