I pre-ordered the Hammerhead Karoo 2 during the last quarter of 2020, fully aware that I might be getting a device that would still require a significant amount of “continuous enhancements”. In other words, I bought into the promise of Hammerhead delivering “the world’s finest cycling computer” through software updates. Eventually.
In many ways, the Karoo 2 already is a good bike computer. In other ways, however, the Karoo 2 is far behind its competition and most definitely a work in progress. I never considered returning the device. Instead, I am looking forward to see the improvements that Hammerhead will be introducing over time. My other cycling computer is a Wahoo Elemnt Roam.
Limited battery capacity and USB-C cable
After about 3 hours of riding, I would expect the battery of my Karoo 2 to be half-empty. On at least two occasions, however, the Karoo 2 died on me with an empty battery after just over 4 hours of use. Unless you turn off the very features which, in all likelihood, made you buy the device in the first place, charging becomes an absolute necessity on longer rides. This is easier said than done, because charging the Karoo 2 while in its mount is impossible with the cable supplied in the box. There just isn’t enough space between the base of the unit and the handlebar for a conventional USB-C plug to fit into. I use a UGREEN Right Angle USB-C to -A Cable and connect the Karoo 2 to a Zendure SuperMini 5K power bank during rides.
Despite its IP67 rating, charging the Karoo 2 in wet conditions may yet damage your device.
Since the release of the Karoo 2, a number of reviews similar to this one have been published on the Internet:
“Usually on rides I’ve found it lasts around 10–11 hours with all my power meter and heart rate sensors connected up, a route loaded, and flicking between screens. Riding without a route loaded (but still with sensors) massively increases the life per charge, to around 13 hours.”
Anna Marie Hughes
After about 6 months of using the Karoo 2, the only conclusion that I can draw from this is that something must be off with either my Karoo 2 or the reported running times…
Komoot limited to 50 planned tours, use Ride with GPS
The Hammerhead Dashboard is supposed to facilitate the integration of the Karoo 2 with services such as Strava, Ride with GPS, Komoot and others. Unfortunately, synchronisation of available routes with any of these services does not take place automatically and requires the use of either a computer or a smart phone.
With Komoot, there is an added limitation in that it is only possible to “sync your 50 most recent planned tours”. Having used other bike computers in the past, I am stunned that this should even be an issue. Komoot users with more than 50 routes to choose from have no choice, effectively, but to start jockeying around with routes just to get them to show up on the Karoo 2…
The solution to the problem is to ditch Komoot and use Ride with GPS.
The Dashboard itself is of limited functionality. Route planning is rudimentary at best and there are next to no tools for post-ride analysis of your data. While not necessarily a disadvantage, this needs to be spelled out clearly. It also means that integration with any third party services needs to to be flawless. Hammerhead’s focus, meanwhile, appears to lie elsewhere.
Missing auto lap functionality
The Karoo 2 does not offer auto lap functionality. Currently, there is no way to set reminders of any kind. Hammerhead merely say that they are “working on adding more towards the lap functionality“. This appears to be a long-standing issue with users of the Karoo 1 as well. The auto lap feature has reportedly spent more than a year in the “development pipeline”, yet Hammerhead are not committing to a “dedicated timeline for its implementation“.
Useless live tracking links With Software Build Version 1.187.987, Hammerhead appear to be pleased that they “fixed an issue that prevented users from viewing a Live Tracking link if they weren’t logged in ahead of clicking the link.” They are missing the point. What is preventing users from viewing any link is having to register and then authenticate every time they want to access the link. Until such time that Hammerhead get rid of these short-sighted requirements, actual owners of the Karoo 2 won’t be sharing anything. In the meantime, getting a SIM and data plan for your Karoo 2 does not appear to make a lot of sense. Unless, that is, you’re planning on inflicting Live Tracking links on friends and family…
Hammerhead no longer require registration to view Live Tracking links. This is a welcome improvement and, in conjunction with a dedicated SIM, appears to be working well at this point.
“…but beyond that you just go for a ride and, you know, usually, especially when you are riding with friends, you’re talking. Not about bikes, about anything. And so you sort of forget the whole bike thing and the bike intrudes when it does things that you don’t expect. Or you never notice the bike, you say ‘man, this is a great bike’ we just rode, you know, 75 miles and not once did I think about the bike. You know, so it sort of the best bike is the one that you don’t notice. And, you know, people sometimes think because we focus so much about bikes [sic] and technology that we’re constantly thinking about bikes. But I think about my bike when I am not riding, so that I don’t have to think about it when I’m riding.”
Start vor dem Landtag zur Abschlussrunde der Sternfahrt durch Düsseldorf.
“Nevertheless, the fact remains that the age of 40 has long since disappeared in my helmet mirror (no, I don’t use a helmet mirror, it’s just a metaphor), and while colonoscopies and mole removals may take up more of my time than I’d like, overall I’m rather enjoying pedaling down this particular stretch of road. In fact, I like to think my latest velocipedal acquisition is a perfect encapsulation of where I’m at right now.” Bike Snob NYC, through space and time, has recently given himself a trans-dimensional high five for finally aquiring that new bicycle.
“If there’s one group of road users virtually immune to being cowed by a lowly act of terrorism involving a motor vehicle, it’s cyclists. We’re reminded every day—through rolled-down car windows, on too-narrow roads, via social media—that we “share” the roads with people who actively hate us and that our interests (including safety) come behind theirs. Every one of us knows what it’s like to stare death in the grille. Daily riders have all had drivers aim their cars at us as if they were about to plow us down, whether because of run-of-the-mill inattention or out-and-out road rage. This reality is priced into our decision to ride.” Eben Weiss alias Bike Snob NYC offers the urban cyclist’s perspective on the latest terrorist threat.
“Worse, those reaction times are for an undistracted driver. Consider that it takes about four seconds to unlock an iPhone, which at just 30mph equates to almost the entire length of that football field.” Joe Lindsey suggests that you grab as much attention as early as you can.
“On most roads, and especially on rough ones, a 32 mm Compass tire will be faster than a 26 mm Compass tire. But a 42 mm Schwalbe Marathon will be slower than both, even though it’s wider—because it’s so stiff that its casing absorbs way more energy.” Jan Heine concludes that higher tire pressures do not result in faster speeds.
“As bikepacking becomes ever more popular, it seems that there’s ever more people trying to tempt the unwary to venture away from the trail centre or off the sofa and into the hills. The words and images used, make it a tempting prospect but you must exercise caution, as these words and pictures are often gilded with half truths and exaggeration, making them a trap for the unwary and ill-prepared.” Bearbonesnorm attempts to redress the balance.
“Back when we were fewer there was a glorious freedom in dancing through the traffic, whose rules and logic we learned so well that it often felt like a benevolent force, sheltering us as much as it threatened us. We were the pilot fish darting in among the sharks, the gazelles sprinting through herds of lumbering bison.” Requiring only two sentences, Emily Chappell manages to capture the essence of cycling in London at a time before Boris Bikes and cycle superhighways.
Difficult conditions. Enjoyable ride.
“I’m an asshole cyclist. I’m that jerk weaving in and out of traffic, going the wrong way down a one-way street, and making a left on red. I’m truly a menace on the road.” Jim Saska is owning up to some pretty bad behaviour when on two wheels, but insists that he is not the reason you hate cyclists.
“The problem is, if you choose to believe Armstrong, that it’s a witch-hunt, then you are also a conspiracy theorist, because the only way you can explain all the witnesses who are willing to testify is to say that they are part of a massive conspiracy against him. One that spans the Atlantic Ocean, includes former team-mates, journalists, doctors, administrators, soigneurs, strangers and mechanics.” Ross Tucker joins the debate.
“Evidence based cycling is not high on the bicycle salesman’s agenda. No one will tell you how much more efficient one bicycle is over another; they just say it is better.” Steel or carbon? Jeremy Groves buys a new bike in the hope of saving up to five minutes on his daily commute…
With thanks to Lutz Meißner
“Over his nearly three years of obsessing over, satirizing and deftly puncturing the sport of cycling, the anonymous blogger Bike Snob has made his worldview clear. He loves to ride his bike. He wants you to ride, too. Just maybe not on those florescent wheel rims.” The identity of the Bike Snob NYC has been revealed, solving one of cycling’s last great mysteries.
Cannondale Cross XR 7 08, wheels Mavic C29ssmax, fork Trigon XC06A, front brake Avid Juicy Ultimate 160 mm, rear brake Avid Juicy Ultimate 140 mm, chainset SRAM Rival 180 mm, chain SRAM PC1090, pedals Crankbrothers Egg Beater SL, seat post Easton EC90, saddle Selle Italia SLR, bar Easton EC90, tyres Schwalbe Kojak 28 x 1.35, weight 8.5 kg
“Clearly, somebody in this room murdered Lord Smythe.”