There are lots of prototype DH bikes on the World Cup circuit this year. We speak to Bernard Kerr, Brooke Macdonald, Finn Iles, Dean Lucas and Kade Edwards about their custom DH rigs.
00:00 Prototype Pivot DH Bike 03:40 Prototype Mondraker DH Bike 05:50 Custom Trek Session 08:12 Custom Scott Gambler 10:23 Prototype Specialized Project Black DH Bike
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henryquinney Member since Jun 3, 2014
291 articles
@shredddr: I wonder if the suspension design bumps up against some patents, and they're trying to skirt around that issue without paying for a license.
its like adult material from a certain island nation in the pacific - some people will still watch it , or try to unscramble the image to figure out whats underneath
@lumpy873: Definitely would work. I still ride my Supreme V2 (though with a bunch of updated parts) When it's really muddy I have a cover to protect my coil shock, and on a few occasions some kids came to ask if if was riding next year's Furious... They don't even notice the 26" wheels anymore
BK - Pivot manager - Content creator, BK shows everything about the new bike, states its a prototype and covers his battle of Air v Coil out back on his YT channel. Everyone will know about this bike and how BK is getting on.
The majority of the rest... its a secret... because BK has shown us so much, we dont care about your cover, that is probably covering nothing much at all. (Brook has an adjustable bike so it might look like a mess under the cover).
Really like hearing the DH guys talk about their own bikes. Dean Lucas talking about the custom frame, weight and switching up wheel sizes was cool. Good stuff PB
Kudos to Pivot for showing us how they're trying to improve their DH bike. Mondraker and Specialized prototypes suck, we wanna see what's going on down there. If they're not going to show it just don't make a bike check about them. This F1ish trend of hiding prototypes it's starting to be annoying honestly.
The secret isn't in the visuals, it's the knowledge accumulated from working out how to extract the performance from it.
You could just copy the Pivot design, but without this knowledge you're a long way from getting it to work well, therefore while you're giving away a little to put it on display, the fans benefit a lot, and the teams don't really lost that much.
Get over yourself... Bike brands don't wear covers on their bikes just to annoy you. There's a multitude of possible variables that makes them use covers. Are they protecting innovation (unpatented tech, or simply hiding new tech from the competition), is the bike too "raw" to be shown to the public, is it a marketing trick, ...? We simply don't know! And I think it's great we are seeing so many prototypes in DH racing. It shows that brands might be investing more money again into developing their DH bikes, which is generally a good sign for the sport!
@pastaman23: Don't get me wrong, I totally understand that the unpatented tech should be protected, but we need DH bikes to become production bikes at some point, and somehow I'm a little concerned that all this money that brands are investing on DH prototypes doesn't become production technology for us the fans some day. Actually this is what happened with the world rally cup recently... Rally cars are completely developed from zero for racing, they're no longer production cars prepared for competition. I just think it's quite sad that one day the fans could get the exact same car their racing idols were riding in the world cup, and now it's just another F1 2.0. I don't want the same to happen with DH, honestly....
@fektor-b: They should 100% require the fitting of bagpipes to anyone who has a bag over their suspension and have them actuated by the suspension movement.
yes there will be a loss in pedalling efficiency but its dh on xc so when ur on the gas ur going for it and from my understanding, they gain back better chain kinematics and wrap while also increasing ground clearance.
This is a guess but… the two stage drive nearly eliminates the constant change in chain length as the bike goes through its travel, which hypothetically, would give it a “chainless” feel.
Without it, if they had opted for a standard idler setup (like all other high-pivots) the derailleur cage has to move constantly (excessively) to maintain tension in order to compensate for the lengthy rearward travel inherent to high-pivot designs. If you want a visual, watch a Norco Aurum being cycled through its travel. The derailleur cage has to move - a lot.
In short, it should have the suspension performance benefits of both a high-pivot and a chainless bike ….again, hypothetical.
@oskare: The amount of force that rim took could have any mtb and e-mtb wheel implode like that. He landed back wheel first, hammering the front wheel to the ground, way past the landing area.
I'm low key impressed the rear wheel survived. The frame didn't survived.
@oskare: I actually asked Bernard about that, he was on prototype rims at Hardline due to a time crunch of his schedule. He got his regular rims the next day, which he assured me are bombproof. Fkn hell, the life of being a tester...
It already has a year of race window for prototypes. Cannondale had a team for 1 year because of this rule. Prototypes can't be tested for only two races, they have a development time that is needed.
BK - Pivot manager - Content creator, BK shows everything about the new bike, states its a prototype and covers his battle of Air v Coil out back on his YT channel. Everyone will know about this bike and how BK is getting on.
The majority of the rest... its a secret... because BK has shown us so much, we dont care about your cover, that is probably covering nothing much at all. (Brook has an adjustable bike so it might look like a mess under the cover).
Bruni could ride my bed and do it fast ....
www.cyclingnews.com/news/fabio-jakobsen-battered-and-bruised-after-crash-in-high-speed-tour-de-france-sprint
yes it gives better ground clearance, but has reduction in efficiency with 2 chains?
Without it, if they had opted for a standard idler setup (like all other high-pivots) the derailleur cage has to move constantly (excessively) to maintain tension in order to compensate for the lengthy rearward travel inherent to high-pivot designs. If you want a visual, watch a Norco Aurum being cycled through its travel. The derailleur cage has to move - a lot.
In short, it should have the suspension performance benefits of both a high-pivot and a chainless bike ….again, hypothetical.
wonder about anti squat as well?
Wyn should take an empty box, wrap it in a plastic bag, clamp the mic on. You know... "Prototype" mic.
Pivot FR: Wrap the rear sus of your bikes in a trash bag and duct tape and do some runs! At least in practice. :-)
I'm low key impressed the rear wheel survived. The frame didn't survived.