Flow Kayaks Sharpski 6.5

After finding the EPIC V12 a bit unwieldy in bigger conditions I tried out the Sharpski.

I think I found the V12 a tricky because it has so much volume and I don’t weight enough to sink it sufficiently with the result it floats higher and I am less stable – of course it could just be beyond my abilities…  In flat conditions the V12 was great, fast, easy to rotate and and has an amazingly comfortable seat, for my bum anyway.

After one or two paddles in medium conditions I decided to order a Sharpski from Jarad Kohlar (Peak Adventure).  Flow Kayaks was just getting underway and starting to produce some new boats.

Having now paddled the Sharpski for some 4 months I decided to write a review because this is one amazing ski.  If you are between 70-85kg and your bum fits the seat then you might find this ski a hard one to beat in almost any conditions.

Summary
SS_IMG_02

An elite class ocean racing ski with features similar to the more popular elite models, such as the Fenn Elite, Fenn Glide, Vajda Hawx and EPIC V14.  It appears that some SharpSki features, such as the forward position of the seat and rudder are only now starting to appear in other manufacturers elite skis.

SS_IMG_03

The key features include:

  • Forward positioning of the seat and rudder to improve ability to pick up and stay on ocean and bay swell (although according to my measurements the V14, Elite and SharpSki have the same seat position relative to the bow, that is 3.45m from lowest point in the seat to the bow)
  • Narrow knife like bow section to slice through chop and improve upwind performance
  • Rounded hull cross section to improve flat water speed
  • Adjustable foot rest with wing nuts so no spanners required
  • Venturi with low drag bullet insert
  • Medium rocker to provide good flat water and downwind speed and good turning response
  • Predictable stability in big conditions, which I attribute to the snug fit of the seat and which means the ski responds more to the position of your hips than to the side chop.  I find skis with less snug seats tend to roll around under me in side chop, which then requires more work to retain my balance.
  • Good performance in 70 – 85kg paddler weight range.

Additional unique features include:

  • Optional flip up rudder for downriver racing
  • Standard construction is a flexible carbon/Kevlar layup that should also withstand some down river racing and scraping over shallow areas with flip up rudder.
  • Common hull/deck platform for Flow Kayaks down river kayak
  • Tough and light construction with early models showing no sign of any significant failure
  • Not prone to golf ball like dents in outer shell like other lightweight honeycomb construction boats.

Overall rating – highly recommended.

One of the best-kept secrets out there I think, thanks Garth Spencer for letting this cat out of the bag!  For those interested there is an animated GPS trace comparing the EPIC V12, the SharpSki and the Fenn Elite SL around the same 4km time trial course (YouTube link here).

Specifications

Length: 6.4m
Max Width: 43cm
Leg Length*: Min: 95cm Max: 115cm
Rocker Measurement*: Rear: 10cm Bow: 11cm
Seat Position from bow: 3.45m
Rudder Position from rear: 90cm
Standard Layup Option: Carbon/Kevlar at around 14kg
Optional adjustable venturi
Optional flip up rudder
Optional bow handle

Measurements Diagram (picture is a Flow Kayak’s Superstar surfski)

Leg length measures the minimum and maximum length between the rear of the seat and the hinge of the rudder pedals (ball of the foot).  Use this measure to check whether you will fit in the seat.

Rocker measurements are measured with the centre of the boat touching the flat surface.

Note that measurements are approximately to the nearest cm.

Ski Measurements Diagram

Performance

SS_IMG_07

The ski is fast in both flat water and open ocean conditions and to me appears to be slightly more stable than boats such as the Carbonology Atom or Think UNO.

I have beaten a few paddlers who use these skis in rougher conditions when they would usually beat me when conditions are flat.

The ski comes almost ready to go out of the box, just attach the rudder for which you will need a 4mm Allen key. No boat cover is included.

Some minor improvements could be made, but these don’t affect performance in any way, including:

  • Some current production models may suffer from issues with cosmetic gelcoat cracks around the seat area.  Flow Kayaks have identified the cause and are planning to address this with changes to their production method
  • Single venturi is quite small and takes a while to empty the cockpit.  Only an annoyance when doing repeated out/in sessions through the surf zone.  Seems to cope fine with keeping the cockpit empty when paddling into the wind though
  • The carbon surf rudder shaft may be prone to breakage in the surf zone so its best to keep a spare handy.  In my experience metal shafts can be bent straight but carbon shaft will just splinter.  I just cut down my V12 marathon rudder as a spare, it seems to have the same shaft diameter
  • Steering arm may slip off the rudder shaft over time.  I ground a horizontal slot in the steering arm to grip the stainless shear pin and prevent any vertical movement.

This ski should be suitable for advanced paddlers in flat and medium conditions and elite paddlers in all conditions.

Because of the narrow seat and limited leg length this ski may not fit larger paddlers (over 85kg or 1.86m tall).

Ichial Tuberos

Best try out the seat by going for a long paddle.  Initially the seat seems quite uncomfortable but I found I got used to it very quickly and now find it very comfortable. The shape seems to reduce the pressure on the ischial tuberosity, usually a serious source of pain on longer races for me.

Your mileage may of course vary, depending on the shape of your butt.

This ski really seems to come into its own in downwind conditions and seems to be a class ahead of other elite boats in its ability to pick up downwind runners of all sizes. Feels a bit like you are on a wild pony that is champing at the bit, just wanting to take off.  The smaller the runners the more this ski seems to outperform other boats including fast flat water ski’s such as the Carbonology Atom.

So far my observations of paddlers at Peak Adventure training sessions in Port Melbourne has been that those who find the seating comfortable, and who overcome the initial feeling of instability, end up being astounded by the stability and performance of this ski in virtually all conditions.

SS_IMG_17

The two SharpSkis on right have a hull shape that is only very subtly different from the Fenn Elite hull on left.  The Fenn hull is every so slightly more triangular, while the SharpSki has a slightly more flowing rounded shape.  The SharpSki also appears more rounded through to the bow.  My impression was that the Elite is slightly flatter aft of the seat than the SharpSki.

Comments and Observations

Some of my more recent observations have been the following:

  • A paddler, Anon1, who I would class as intermediate recently jumped on the SharpSki in big bay conditions (for Port Melbourne anyway, where we get quite a mixed up chop so it’s testing on your stability).  Initially he looked a bit tentative and took one swim where I stopped to help him get back in, however he completed the training session with no further swims as far as I am aware.  A few days later I again observed him training under similar conditions, however this time he was absolutely ripping the downwind legs looking more like and advanced paddler.  Anon1 is a small fit individual and I think he will quickly become very competitive in the SharpSki.
  • Another paddler, Anon2, who I would just squeeze into the advanced category has also recently started trying out the SharpSki, having previously paddled a Fenn Elite but suffered from dead legs (I too find that my legs go numb in the Fenn seat).   In the most recent training session, also in big conditions, Anon2 was right out front with the leading bunch on the upwind legs and after a bit of guidance on how to pick and link the runners was very difficult to pass on the downwind leg.  Usually I would blast past him without having to try very hard.  On this occasion he was able to continuously link runners and keep one wave ahead of me all the way back to the beach.  His words leaving the water were “ I love this boat!” – nothing more to be said really.
  • Our coach, an elite paddler of course, who shall also remain anonymous, was heard muttering about struggling to catch the runners after being dropped on the home straight on a virtually windless day where there were still some small bay runners to be found.  Since that day Coach has almost exclusively paddled the SharpSki unless someone beats him getting it out of the racks! Needless to say he has now been restored to his usual position in front of the leading bunch…

More detailed photographs can be found here.

Tips for making a GPS mount and securing the tiller bar can be found here.

Company Overview and Contacts

Flow Kayaks are based in Nelson, New Zealand and headed up by the formidable team of Andrew Martin (formerly Andrew Martin Kayaks) and Richard Usher (of Coast to Coast fame).  The company makes multi-sport kayaks and surf skis based on the same platform and wing paddles.

Demo boats available in Melbourne and Sydney, Australia (contact Jarad Kohlar at Peak Adventure).

Please send any comments or corrections regarding this review to dagroenewald@gmail.com.

One thought on “Flow Kayaks Sharpski 6.5

  1. An impressive share! I have just forwarded this onto a coworker who has been conducting a little homework
    on this. And he actually bought me breakfast because I found it for him…
    lol. So allow me to reword this…. Thank YOU for the meal!!

    But yeah, thanx for spending the time to discuss this subject here on your web site.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s