I wanted to design some kind of test that would demonstrate how the shoe feels. How does it flex? How stiff is it? Of course this is something that we could all have very differing opinions over, so a simple test was needed that would enable a comparison between shoes. I will say now that this is most certainly not a totally serious test, but it may well give you an idea if you want to know how a shoe compares to one you already own. A little bit of fun and possibly a little use before you make that purchase.

The Test

It's simple. I take my digital bathroom scales, and I stand a shoe (brand new) on it's heel. I then push down on the toe till it has flexed around 90 degrees (as shown in the pictures). I then note the weight that is recorded and take a photo of the flexed shoe from the side to demonstrate the flex i.e. how the sole flexes. From the toe or further back. The shoes weight is subtracted from the weight to give a final score.

All results will be colated here firstly in a table for easy comparison, then below individually with the picture of each shoe going through the test.

If you would like to see your companies shoes go through the flex-test, please contact me at This email address is being protected from spambots. You need JavaScript enabled to view it.

Thanks to Martin at the Aviemore branch of Ellis Brigham for helping out with some of these.

EBSquareSmall

 Brand  Model Flex-Test  Rating
 La Sportiva  Mutant  10.2
 La Sportiva  Helios  3.0
 La Sportiva  Helios SR  3.0
 La Sportiva  Anakonda  3.4
 La Sportiva  Bushido  6.0
 Scott  Kinabalu Supertrac  6.7
 Scott  Trail Rocket 2.0  4.9
 inov8  Race Ultra 270  4.9
 inov8  Race Ultra 290  6.6
 inov8  Roclite 282 GTX  5.0
 inov8  Roclite 295  3.8
 inov8  Terraclaw 220  3.7
 inov8  Terraclaw 250  6.8
 inov8  Mudclaw 265 (Precision fit)  5.2
 inov8  Mudclaw 300 (Precision fit)  5.1
 inov8  Talon 212 (Precision fit)  2.7
 inov8  Talon 212 (Std fit)  5.0
 inov8  Talon 190  2.4
 inov8  Roclite 286 GTX (boot)  1.3
 The North Face  Ultra Endurance  3.6
 Hoka  Speedgoat  10.5

 

La Sportiva - Mutant

Flex-Rating - 10.2

P1030795 

La Sportiva - Helios

Flex-Rating - 3.0

Review

P1030401

 La Sportiva Helios SR

Flex-Rating - 3.0

Review

P1030400

La Sportiva Anakonda

Flex-Rating - 3.4

Review

P1030430

La Sportiva Bushido

Flex-Rating - 6.0

P1030866

Scott Kinabalu Supertrac

Flex-Rating - 6.7

Review

P1030398

Scott Trail Rocket 2.0

Flex-Rating - 4.9

P1030399

inov8 Race Ultra 270

Flex-Rating - 4.9

RaceUltra270

inov8 Race Ultra 290

Flex-Rating - 6.6

RaceUltra290
 

inov8 Roclite 282 GTX

Flex-Rating - 5.0

Roclite282GTX

inov8 Roclite 295

Flex-Rating - 3.8

Roclite295

inov8 Terraclaw 220

Flex-Rating - 3.7

Terraclaw220

inov8 Terraclaw 250

Flex-Rating - 6.8

Terraclaw250

inov8 Mudclaw 265 Precision fit

Flex-Rating - 5.2

Mudclaw265Flexed

inov8 Mudclaw 300 Precision Fit

Flex-Rating - 5.1

Mudclaw300Flexed

inov8 Talon 212 Standard Fit

Flex-Rating - 5.0

Talon212StdFlexed

inov8 Talon 212 Precision Fit

Flex-Rating - 2.7

Talon212Flexed

inov8 Talon 190

Flex-Rating - 2.4

Talon190Flexed

inov8 Roclite 286 GTX (boot)

Flex-Rating - 1.3

Roclite286GTXFlexed

Hoka Speedgoat

Flex-Rating - 10.5

HokaSpeedgoatFlexed

The North Face Ultra Endurance

Flex-Rating - 3.6

NorthFaceUltraEnduranceFlexed

Comments   

0 #3 Pete Morgan 2015-04-28 22:05
I'm surprised by the Trail Rocket - although I only ran in the first version - I would have thought it was at least as flexible as the Helios. The Trail Rocket felt lighter than the Helios, and transitioned really well, but that may have been the subtle rocker I suppose.
Shame they narrowed it for v2.0..
Quote
+1 #2 Neil Bryant 2015-04-15 09:02
Yes correct Chris. The number equates to kgs. So as you can see the Scott Kinabalu Supertrac is pretty much double the La Sportiva Helios. Which feels about right to me having run in both shoes. Anyone else tried two of these shoes and have an opinion on how relevant the score is to the feel of the shoe?
Quote
0 #1 Chris Baynham-Hughes 2015-04-14 19:31
So the lower the number the more flexible the shoe relative to its weight right?
Quote

Add comment


Security code
Refresh

  • 1
  • 2
  • 3
Prev Next

2018 Hardmoors 30 Race Report

2018 Hardmoors 30 Race Report

Written by James Campbell - https://jamescampbell78.wordpress.com It’s genuinely scary how quickly this race seems to have come around.  It feels like only a couple of weeks ago that I was embarking on...

Read more

Robin Hood 100 - 2018 ‘The Road To Spart…

Robin Hood 100 - 2018 ‘The Road To Sparta’

Written by Andy Day I’ve done a few of Hobo Pace events before & I’ve got to know the organiser Ronnie. He’s a genuine guy with a clear passion for running...

Read more

361˚ Sensation 3 Shoe Review

361˚ Sensation 3 Shoe Review

Written by Sim Benson www.jenandsimbenson.co.uk Price: £119.99 Weight per shoe: men’s UK11 335g women’s UK6.5 265g Find out more www.361europe.com/en Overview: The Sensation 3 is designed as a high mileage trainer with a good blend...

Read more

Don’t Stop Me Now: My Grand Slam Finish …

Don’t Stop Me Now: My Grand Slam Finish at Wasatch

Written by Katrin Silva - http://runkat.com “Hug me. Time to get comfortable getting uncomfortable.” My favorite aid station sign, and sound advice for finishing Wasatch The Wasatch 100 is the last race of...

Read more

La Sportiva Grand Tour of Skiddaw

La Sportiva Grand Tour of Skiddaw

Written by Richard Stillion - https://richyla.wordpress.com Pure Outdoors Events 1st September 2018 http://www.pureoutdoorsevents.co.uk/index.php/the-grand-tour-of-skiddaw Race Director Gaynor Prior Event HQ Chris Preston Event Manager Clare Shannon Race Winners: Andy Swift 6.35.40 and Sabrina Verjee 8.07.00 1976 – the drought year!  That was...

Read more

a long mARCh

a long mARCh

Written by Richard Stillion - https://richyla.wordpress.com Mud Crew Arc of Attrition http://mudcrew.co.uk/event/the-arc-of-attrition/ RD Andrew Ferguson 1st Female   Maryann Devally 32.26.32 1st Male       Steven Wyatt 23.44.18 *Some photos were taken in situ, some in more clement weather. Short version:  Up.  Down. Bog...

Read more

Mozart 100 - Ross Hay

Mozart 100 - Ross Hay

Written by Ross Hay Last weekend at 5am in the morning I was at the start line of the Mozart 100. How did I end up here for my longest race...

Read more

Liverpool to Leeds Canal Race – 130 mile…

Liverpool to Leeds Canal Race – 130 miles – 2018 and thoughts on the Canalslam

Written by Phil Bradburn - https://untrainingultrarunner.com This was the final race in the Canal Slam series – which includes the legendary Grand Union Canal race and the Kennet & Avon Canal Race – which are both...

Read more

The 2018 Kennet and Avon Canal Race 145 …

The 2018 Kennet and Avon Canal Race 145 miles

Written by Phil Bradburn - https://untrainingultrarunner.com With 7 weeks between Grand Union Canal Race and the second race in the Canalslam series – Kennet and Avon Canal Race – it was always...

Read more

Race Report: Jurassic Coast 100 Miler

Race Report: Jurassic Coast 100 Miler

Written by Jamie Chaffey - https://mountaintrailrunning.com The Jurassic Coast 100 follows the historic clifftop trails along England’s southwest coast. I’m in the process of accumulating points to eventually enter the UTMB one year...

Read more

SOUTH DOWNS WAY 100 – RACE REPORT

SOUTH DOWNS WAY 100 – RACE REPORT

Written by Luke Latimer - https://jurarunner.com I was expecting to find you hunched over your poles, headphones in, grinding through the dark miles with gritted teeth. Are you sure you’ve just run 85...

Read more

Spartathlon 2018

Spartathlon 2018

Written by Will Rivera - https://willrivera-ultra.tumblr.com “Pushing your body past what you thought it was capable of is easy; the hard part is pushing yourself even further … past what your mind...

Read more

The Arc of Attrition 2018

The Arc of Attrition 2018

Written by Jean Baptiste Rouvelin - http://jbrouvelin.blogspot.com Kit checked and got my number Well, where to start.  The Arc of Attrition is a point to point race which forms an arc following the South...

Read more

Love and Hate on the Lavaredo Ultra Trai…

Love and Hate on the Lavaredo Ultra Trail

Written by Tom Wright - http://life.tomwright.me.uk No medal, no finishers photo but I did complete the Lavaredo Ultra Trail. No really I did… I have my coveted bin bag to prove it!  (Note Lavaredo has a...

Read more

MB90k 2018

MB90k 2018

Written by Paul Baldwin - http://pbracereports.blogspot.com Let’s start with the finish I finished the 90km du Mont Blanc in 22 hours and 29 minutes, ranking 564th out of 1,142 entrants (49th percentile), and...

Read more

Grand Union Canal 2018 – 145 miles

Grand Union Canal 2018 – 145 miles

Written by Phil Bradburn - https://untrainingultrarunner.com “There is nooooo way that I am going to run this race – I have seen what it does to people! And those swans…. And those...

Read more

Burning River 100 Race Report: My Wicked…

Burning River 100 Race Report: My Wicked Trail

Written by George Callahan - https://wickedtrailrunning.com Burning River 100 Race Report My Wicked Trail My 2018 Burning River 100 Race Report may not look like some of the other race reports you’ve read. I’m...

Read more

Stour Valley Path 100 – 11 August 2018

Stour Valley Path 100 – 11 August 2018

Written by Tom Atkinson Pre-race I’ve been focused on this race since my last ultra in February (St Peter’s Way, 42 miles and the previous furthest I’ve ever run). Training went pretty...

Read more

Share This

Follow Us