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NAHBS 2015: DEAN Titanium Builds a Handmade Enduro Bike Prototype

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Dean Titanium enduro bike flex stay (2)

There are a number of themes going on at NAHBS 2015, but at least here – Enduro is in the minority. That hasn’t stopped DEAN Bikes from trying their hand at a new 150mm travel platform. Now under new ownership, DEAN Bikes was purchased from John Siegrist by long time employee and welder Ari Leon. John will still be consulting and helping out on occasion but the main operations will now be in the hands of Ari and his capable crew of former employees.

One of the biggest desires from their enduro bike was to build a long travel full suspension titanium bike that actually took advantage of the materials ride qualities instead of hiding it. To accomplish that, the frame has a unique flex stay that should work out to an interesting ride…

Dean Titanium enduro bike flex stay (6)

Dean Titanium enduro bike flex stay (5) Dean Titanium enduro bike flex stay (1)

Taking the place as a pivot in the four bar suspension, the chainstays are made from a titanium plate. Due to the relief cuts and the shaping of the plate, the chainstay flexes upwards which works in tandem with the rest of the pivots to allow for a full 150mm of travel with a very linear, DH like feel. So far, the company has spent a lot of time designing and optimizing the suspension linkage to work with the Cane Creek Double barrel air and are still in the testing phase of the design.

Dean Titanium enduro bike flex stay (4) Dean Titanium enduro bike flex stay (3)

Dean Titanium enduro bike flex stay (8) Dean Titanium enduro bike flex stay (7)

Centered around a 1x specific frame design, the fully Colorado built 3.25 titanium frame uses a 142×12 rear axle with 27.5″ wheels and comes in around 7.5 lbs for the frame and shock. As pictured the bike built up to less than 29 lbs for a large and DEAN guesses pricing will be around $3500-$3800 for a frame and shock.

deanbikes.com

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James S
James S
7 years ago

If they added Paragon sliders to it, I’d be interested if I ever got rich. It would then be a nice option to a Lenz. (Single speed full suspension!) Otherwise, there are way too many frames out there for less money that weigh the same or less. It’s unique, but just like the new Yo Eddy, you’d have to have a lot more money than sense to buy one. I still can’t believe how many rich people apparently ride bikes because that’s all I see these days on Bikerumor – insanely expensive toys for the Freds that eat caviar flavored energy bars.

Bob Schmankel
Bob Schmankel
7 years ago

I’m surprised they didn’t get the memo that at least five other builders have tried plate titanium chainstays with generally bad long term results.

Aaron d
Aaron d
7 years ago

Yep add paragon sliders so you can add a rolhoff and belt drive and this’d be my next bike. I’ve a 10 year old dean ht that I love to bits.

Matt
Matt
7 years ago

Pivot isn’t concentric with BB – all your singlespeed dreams for this bike don’t mesh with the chain (belt??) growth as the suspension compresses. Also, nothing to keep the plate from working if they get the peening and/or HT recipe sorted. There are lots of infinite lifecycle Ti springs out there.

Dave
Dave
7 years ago

Snap, Crack, Pop, and walk.

Dave
Dave
7 years ago

James, you got a source for those energy bars?

Ari Leon
Ari Leon
7 years ago

You can feed the trolls with those bars. Call us at Dean if you really want to know more.

craigsj
craigsj
7 years ago

The flex plate here is used for a pivot that doesn’t have the range of motion of other flex plate designs. Those other bikes had terrible pedaling dynamics are short travel as well. Don’t see a problem with this at all. Surprised at the weight.

Wonder if Dean will do custom versions of this design going forward?

Tony
Tony
7 years ago

I think the system it’s going to work closer to a VPP than most people think. It’s not a simple 4-bar with all the flex happening around the dropouts, the first part of the chainstays work almost like a small link…

Robert
Robert
7 years ago

james S. When you have enough smarts to make the money necessary to purchase what ever you want is freedom. When it somes to toys, more money than smarts can be fun, but rarely can you have one without the other…

Anthony
Anthony
7 years ago

@ Bob Schmankel. Theres only know of one company with an actual patent and that’s John Castellano. That’s probably why the rest are failing

Willem
Willem
7 years ago

@anthony Remember the ibis silk-ti and the bow-ti, which if I’m not mistaken was designed by Castellano and taken with him the first time that Ibis folded. Those were some wicked ideas that man had.

Anthony
Anthony
7 years ago

Yes I have a silk ti 29 that is the big wheel reincarnation of the silk. This DEAN design ( to my untrained eye ) looks like a non original copy of the plates. I know FUNK does a ti plate but it doesn’t have the cnc’d cutouts like this does.

Anthony
Anthony
7 years ago

Yes I have a silk ti 29 that is the big wheel reincarnation of the original IBIS silk. This DEAN design ( to my untrained eye ) looks like a non original copy of the plates. I know FUNK does a ti plate but it doesn’t have the cnc’d cutouts like this does.

Eric
Eric
7 years ago

FUNK only uses flex plate as a bridge between the chainstays and bb and a small thin spot on the seatstays about 2″ above the dropouts to essentially act as pivots. The rest is tube. I was equally impressed by both designs in person at NAHBS.

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