Added a comment about slideshow THE KYLE STRAIT INTERVIEW 2/4/2016 9:35 AM


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  • Vital MTB member TomJones
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Liked a comment on the item ONE LAP - Griz and Kyle Strait in Baja 2/2/2016 9:01 AM

hell yes! like TRex mentioned, sick to see you back on a "roll" Griz!

Added a comment about video ONE LAP - Griz and Kyle Strait in Baja 2/1/2016 1:56 PM

Thanks TRex!

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Added reply in a thread anyone know what happened to "superfan" from the mid-2000's NORBA days? 1/21/2016 3:28 PM

Just shot the man a tweet... that's the last place I heard from SF.

2016 Griz Institute of MTB Announced
(Press Release)

1/19/2016 2:17 PM

Updated photo album Griz Institute of MTB 1/19/2016 2:12 PM
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Added a comment about product review Tested: Maxima Assembly Lube 10/29/2015 4:09 PM

Yes, Assembly lube works as a bath oil additive. The commonly used grease you're soaking the foam rings with can be replaced with Assembly Lube. The lube will mix with 20wt gold and aid in keeping the lower bushings lubricated. I've been using it in my Fox 40 with zero issues. My technique is to place the assembly lube below the foam ring so it sets up on the lower bushings then add bath oil as normal. I'll let you form your own opinion with performance gains.

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Added a comment about video THIS FRIDAY! Mountain Bike Season Kicks Off at Snow Summit 5/6/2015 2:05 PM

Legends like Brian Lopes and a number of current pros like Aaron Gwin got their start racing at Big Bear, and you couldn’t blame them if they’re a bit jealous of the next generation. Nice claim! hahaha.

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Added a comment about video 14-Year-Old Finn Iles is a Future Whip-Off World Champ - #FinnIsIn 8/8/2014 8:47 PM

like Rampage - whip off's need a new venue.

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Added a new photo album 5.10 Impact VXi Review 6/25/2014 8:48 PM
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Added a product review for Five Ten Impact VXi Shoe 6/19/2014 4:42 PM

Tested: 5.10 Impact VXi - Real Sticky-icky


The Good:

The Bad:


Review by Sean "Griz"McClendon // Action photo by Ian Collins

I remember my first set of Intense sticky rubber high tops back in 2003. They were a size too big, the stealth rubber performance was second to none and I happily ran them until switching to clips for racing. Entering the bike market with their Impact high and low top shoes, 5.10 quickly became popular with the rise of Sam Hill and his mind-numbing approach to racing in the mid-2000’s.Since then, the sticky rubber specialist brand has been the rider’s choice for flat pedal footwear for nearly a decade and people are running them for hundreds of miles after they fall apart. Developed with Sam Hill and Brook Macdonald, the Impact VXi is the latest and greatest gravity shoe from 5.10. Are they bitchin? Do they stink? What’s the deal? 4 months of testing are in the bag so, let’s get this party started.

Impact VXi Highlights

  • Mi6 rubber sole
  • Weatherproofed
  • Wide toe box
  • Stiff sole
  • Jumbo arch support
  • Slim profile
  • Improved style
  • Red or Black lace options
  • Weight: 360 grams/12.7-ounces
  • Improved toe protection
  • MSRP: $150 USD

Initial Impressions

Out of the box, I could immediately feel that the shoes weighed less than any previous Impact model before trying them on. Style is also improved as 5.10 moves away from the moon boot flair, although the new toe design looks like rugged chef clogs mated with a skate shoe.

Function beats fashion with plenty of room in the toe box for a wide hoof like mine. And much like a chef’s clog, the toes are designed to protect feet from harm and we’ll get to how that performed later as I did stub a toe or two in the duration of testing. Are they comfortably comfortable? Yes – the tongue is neither too thin nor too thick and there is plenty of ankle support to match the jumbo amounts of arch support for an overall fantastic feel.

I have tall arches so I really appreciate the arch support but I can’t offer any viable feedback for all you flat footed readers out there. The insoles are amazing and a set of spare laces stoked me out too. Spare laces are killer for a survival scenario. After initial inspection, I thought these shoes were better all-around and comfier than any previous pair of 5.10’s I wore. OK then, how did they ride?

On The Trail

Let me start with the little things. I can’t stand it when my shoelaces come undone and 5.10 gets an A+ because their laces hold a tight bow even when they snag on brush. Brand new Mi6 outsole rubber initially felt too sticky and “dead feeling” for me but I can understand how some would love this feeling. I could barely feel where my foot was on the pedal even with my good foot let alone make any adjustments. I tested the Impact VXi's on Deity Skyscraper pedals with a personal pin stagger – tall pins in the front of the pedal to short pins in the back – and initially there was too much grip in addition to the sole being very stiff. During the “break in” period my feet were blowing off the pedals in harsh hits from the trail. In a perfect world where 5.10 says “Griz, you’re so bitchin’ you get unlimited shoes” I would scuff the crap out of fresh Mi6 outsole rubber and obligate one of my students to lace them up and walk 20 miles to break them in before I rode them. Well no such luxuries here but after a month of testing the Impact VXi’s wore into their “sweet spot” and I began to comprehensively enjoy their performance.

Tons of grip to the pedals with enough give to adjust as needed, comfy insoles, pleasant arch support, laces that hold a bow and they hardly stink of sweaty hoof. At this point the shoes are handling my abuse like a boss. One of my biggest irritations in life is wet feet. Water resistant? Check! SoCal actually got a couple rain storms while testing and my feet never felt soggy thanks to the water resistant material, strategic double stitching and rubber toe. Laces and the very top of the tongue absorbed moisture but I was shocked at how well these shed water and how quickly they dry out. This is a big improvement over the previous iteration of the Impact. About that toe protection mentioned earlier… Yeah, rocks still hurt when you try and kick them. It would take a steel toe to offer sufficient protection for the beating my foot took but I didn’t break any bones so it's fair to say that the VXi's offer some protection. The other alternative is to do it for Bender and start riding in motocross boots, NFG. At the end of the day these shoes get the job done in fine form.

Long Term Durability

Shoes aren’t designed to last forever but the Impact VXi’s proved to be pretty tough. The Mi6 rubber didn’t match my preference until they had a month of wear and only felt better over the following two months. You can see in the photo below how the rubber wore evenly to become one with pedal.

Eventually, chunks of rubber began to disappear and by month 4 of testing rubber started tearing and holes in the outsole began to form.

I’m still running them as is with no issues or forecast on when they’ll be toast. Keep in mind, I use really tall pedal pins where the holes formed and rubber tore so this damage is to be expected. Aside from the outsole rubber wearing pretty quickly, every other part of the shoe has stood up to my abuse exceptionally well. No stitching has come undone, they don’t smell horrendous, the insoles remain comfy and the laces still hold a tight bow. In this case, it appears the body of the shoe is going to outlast the Mi6 rubber outsole by a long shot.

What’s The Bottom Line?

If you’re a flat pedal rider, you’ll love the lighter, slimmer profile, sticky-icky, arch supporting Impact VXi. The shoes are expensive at $150 when you compare it to the competition… wait, there is no competition. So, $150 is the going rate for the lightest, most water resistant, quick drying and industry leading sticky rubber DH shoe. The improved toe box makes for a comfortable fit and offers a fair amount of protection from the hazards of downhill.Mi6 rubber is really grippy and performed amazingly well for two months for me. Eventually, after 4 months of riding 3 times per week chunks of outsole rubber went missing and holes developed. No other section of the shoes failed during testing. The Impact VXi’s are my favorite shoe by 5.10 for now.

For more information, head on over to

About The Reviewer

Sean "Griz" McClendon is back, ladies and gentlemen. Following a major crash during the 2010 USA National Championship Pro downhill race, he put in the hours and fought his way back to health and the fun that is two wheels. Griz has ridden for a number of the USA's top teams throughout his racing career, testing prototype frames and components along the way. Motivated by the mantra "whips don't lie," you'll often find him perfecting his high-flying sideways aerial maneuvers while living the #pinelife. Check out for some of his home-grown inspiration.

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Added a comment about video BLAST OFF! - Aggy's Reunion Highlight Video 5/22/2014 1:22 PM

this shit right here!

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Added a comment about news blog FEST Series Stop #1 - Aggy's Reunion 5/22/2014 8:13 AM

This is amazing.

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Added a comment about video Deity: Through the Night with Jake Kinney 5/5/2014 7:27 AM

So bitchin.

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Added a comment about video OHLINS ON MY MIND - Riding the Ohlins TTX-Equipped Specialized Demo 8 with Mitch Ropelato and Brad Benedict 4/30/2014 6:28 AM

The TLD gear looks tight but that shock has the wrong fluid inside it.

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Added a comment about photo Dave Ziegman 1/8/2014 4:46 PM

DZ you can't win races on the ground!

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Added a comment about video RockShox Game of Bike - Aaron Chase vs. Kirt Vories 12/20/2013 11:20 AM

Best B.I.K.E game to date!

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Added a comment about feature Blue Ribbon Banter: Sugar, Spice and Everything Nice 12/16/2013 2:45 PM

Meanwhile, word on the streets is that Tara Llanes is making remarkable progress with her body. Who's talking about this? And furthermore, who is looking out for the athletes of this sport that disable themselves in competition? It's cool for women to be "feminine and fierce" these days but it takes warriors to live a life after bikes considering the reality of blunt trauma in our sport. Gender banter seems irrelevant considering the "bigger picture." Let's generate banter that will initiate progress for our athletes.

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Added a comment about product review Tested: 2014 Intense 951 EVO - Real. Big. American. 11/5/2013 7:43 AM

Easily offended, I see. We're talking about a hand crafted aluminum bike here not carbon, Dirtstar. Ignorant? Negative.
Since your comment has little to do with my review - I'd like to quiz your knowledge. How many MTB manufacturers continue to produce bikes in the USA and who are they? Next question (true or false) Did production of mountain bike frames in Taiwan begin as a result of an American capitalist traveling overseas with a Tom Ritchie handcrafted frame with the intent to knock it off for dirt cheap? Are the environmental standards in Taiwan the same as in the USA?

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Liked a comment on the item Tested: 2014 Intense 951 EVO - Real. Big. American. 11/5/2013 7:17 AM

So calling an American an American is a racist slander now? Relax. . . oh and for the record the conditions in Asian factories (at least in Taiwan) are quite nice but I've not met any who are served meals or provided free housing, they earn an honest working man's wage, own their own homes...more