You Dont Know the Power of the Giants
Giant'southward Power Pro organization adds dual-sided power sensing to Shimano'southward Ultegra crankset. I've found the power numbers to be repeatable and believable, and Ultegra cranks are hard to error in performance. Equally a system, it's a good value option for dual-sided power.
What you lot're getting hither is a Shimano Ultegra R8000 chainset in your choice of configuration – 165mm, 170mm, 172.5mm or 175mm cranks in either 50/34 or 52/36 – with Giant'south own ability-sensing engineering fixed to both sides.
In that sense it's a very similar offer to the Stages LR ability meter, which retails for well-nigh £85 less in the Ultegra spec (Mat tested an earlier Dura-Ace version back in 2015), and 4iiii'south Precision Pro Ultegra power meter which is about £100 less.
> Purchase now: Giant Power Pro Ultegra R8000 Power Meter from eBay for £590.00
The main difference is that the Giant system uses a rechargeable battery, whereas both the competitor systems utilise a simple 2032 coin cell on either side. The battery life is well-nigh the same at a claimed 100 hours per charge, merely the internal battery means there are no battery covers or seals to worry about: the whole thing is sealed and rated at IPX7 for waterproofing. That'south chuck-it-in-the-lake waterproof, and so rain and route muck should have little effect.
The charging lead attaches magnetically to both sides for charging; information technology's a bit of a faff and of form yous'll need the proprietary lead, so if it dies on a training camp or something, you tin't just chuck another push button cell in. But overall, it's a better solution than using replaceable batteries.
Many tiptop-end Giant bikes already come up with the Power Pro, and equally a retrofit option it's every bit simple every bit taking off your current cranks and swapping them out. If you're replacing Shimano cranks all you lot'll need is a 5mm hex key and the little star washer tool. If it's some other creepo system and then y'all might likewise need a new bottom bracket, depending on the spec of the axle.
We've reviewed the Ultegra R8000 groupset and there's not a lot to be said nigh it that hasn't already been said. If you're spending your ain money on lightweight components for a route bike, it's hard to beat in terms of bangs per buck. The hollowtech construction of the crankset keeps things low-cal and potent, and shifting operation is amongst the best in that location is. So there aren't actually whatever worries on that side of things.
To zero the cranks, Giant says yous should use the Behemothic RideLink app on your smartphone. (There'southward a video hither, showing you lot how to pair your Power Pro with the RideLink app.) You can also initiate over-the-air firmware updates from the app.
The app can record rides and show you graphical representations of your pedal stroke. That might be useful to you if, for example, you're riding indoors and working on making your pedalling smoother. Just in the vast majority of cases you'll already be set up for recording your rides and y'all'll want the Power Pro to be piece of cake to incorporate into your existing setup. Which I found it to be: I had no issues with linking to various GPS computers from the GPS computer drawer, and likewise no problems hooking up to my PC for indoor training. All good.
The cranks are dual Bluetooth/Ant+ compatible so they should work with pretty much any GPS head unit or indoor preparation organisation you could intendance to mention.
On to power, then. The numbers from the Ability Pro appear to exist repeatable, and accurate. Which is nice. Here'south a section of an outdoor ride by way of an example comparing the cranks (blue) to Garmin's Rally RK200 pedals (purple):
As you can run across, in that location's barely anything in it between the two. The average is inside 1W, and at all times the two power meters track each other very closely. At some points the Garmin pedals read higher, at other points it'due south the cranks, but there's very niggling in it.
I'm very happy with both of these power traces. They're effectively measuring power at the aforementioned indicate, as there are minimal losses in the pedal bearings transferring power to the crank, so you'd await them to read the same, and they practice.
> The x best cycling ability meters: which 1 is right for y'all?
Giant's claimed accuracy is +/- 2%, which is nominally less accurate than its direct competitors, only at that place were no issues with the power readings I got from the cranks. Left/right balance on both pedals and cranks was 51/49 left to right, which is what I'd wait. Like I said before, the RideLink app can be useful to wait at your power balance and the ability signature of your pedal stroke if you're having specific issues or want to address any weaknesses in your pedalling. But it's unlikely y'all'll switch to information technology equally your primary means of gathering data.
Funnily enough the discrepancy in cadence between the two power meters was larger than the ability gap was, which is odd seeing as it's such an like shooting fish in a barrel thing to measure. The Power Pro uses an accelerometer for cadence sensing, so everything's handled internally. The difference is even so just small here, and both of the units give solid readings with no drop-outs.
> 12 reasons why you should buy, and utilize, a power meter
Overall, the Power Pro cranks are a really good option if you lot want to measure your power straight. Viii hundred quid isn't small modify, simply they're a comparable price to other similar power meters and the weather-sealed, internal battery design is meliorate. Giant's app gives you a bit more than in terms of options for studying your pedal stroke, too. Shimano's Ultegra cranks are difficult to crush, and overall this is a very well-considered parcel for adding power sensing to your wheel.
Verdict
An splendid choice if you want dual-sided power on your bike
If you're thinking of ownership this product using a cashback deal why not use the road.cc Acme Cashback page and get some top cashback while helping to support your favourite independent cycling website
road.cc test report
Make and model: Giant Power Pro Ultegra R8000 Power Meter
Size tested: n/a
Tell united states of america what the product is for and who information technology's aimed at. What exercise the manufacturers say about it? How does that compare to your ain feelings most it?
Giant says, "Tracking your power output and grooming data has never been easier or more accessible. Giant's all-new Power Pro organisation delivers accurate power metrics through an integrated organization that's precise, reliable and uncomplicated to gear up. The pros know that the most effective training is smart preparation, and so arrive the know and first training with power."
Tell us some more than about the technical aspects of the product?
Behemothic lists:
+/- 2 % accuracy at 150w/80rpm (each side)
Giant-exclusive algorithm ensures authentic and stable data output with no environmental distractions
Accelerometer allows magnet-gratuitous measurement
LED indicator displays battery level and alerts recharge when power gets below 20%
Integrated magnetic rechargeable design protects device from water and grit ingress
IPX7 waterproof
Bluetooth® Smart/Emmet+ compatible for wide compatibility, easy calibration and firmware updates.
Loftier-chapters lithium bombardment delivers upward to 100 hours of riding on a single charge
2 year warranty globe-wide
Various crank lengths available on either 50/34 or 52/36
Rate the product for quality of construction:
9/10
Rate the product for functioning:
nine/10
Charge per unit the product for durability:
9/10
Rate the product for weight (if applicable)
8/10
Rate the product for value:
6/ten
Tell us how the product performed overall when used for its designed purpose
Very well.
Tell us what you specially liked about the product
Accurate power, well-sealed electrics, excellent cranks.
Tell usa what you specially disliked about the product
Charging is a scrap fiddly.
How does the price compare to that of similar products in the market, including ones recently tested on road.cc?
A little higher than comparable Stages and 4iiii Ultegra-based cranks, but you're getting chuck-it-in-the-lake waterproofing and Giant's app.
Did you relish using the product? Yes
Would you consider buying the product? Yes
Would y'all recommend the production to a friend? Aye
Utilize this box to explain your overall score
It's an fantabulous option if you lot want dual-sided power. Non inexpensive, but on the money in terms of value.
Age: 49
I ordinarily ride: whatever I'm testing...My all-time bicycle is: Kinesis Tripster ATR, Merida Scultura, Dward Design fixed
I've been riding for: Over twenty yearsI ride: Every 24-hour intervalI would grade myself equally: Expert
I regularly practice the post-obit types of riding: road racing, time trialling, cyclo cantankerous, commuting, touring, lodge rides, sportives, full general fitness riding, fixed/singlespeed, mtb, Mountain Bike Bog Snorkelling, track
Source: https://road.cc/content/review/giant-power-pro-ultegra-r8000-power-meter-290167
0 Response to "You Dont Know the Power of the Giants"
Post a Comment