Having gone so far to design a bike around the impressive performance of the Naild system, Marin saw it necessary to go the extra mile in development. The four-bar suspension with a sliding element to control the rear axle path is custom-tuned depending on frame size. Diverting from the Wolf Ridge, the Mount Vision has an additional vertical link connecting the top tube and rear shock. Matthew Cipes, MTB product manager at Marin elaborated, “We added the swing link to give the bike a very poppy and playful feel to compliment the 27.5-in wheels and bring out the best in them.” As a side benefit, the change in linkage made room for an impressive two water bottles on this bike— something many of their pro riders requested.
Cipes went on to say, that Marin, “Took a lot of feedback from Martha Gill, Matt Koen, and Nikki Whiles for the bike as well as input from Joe Murray. Matt & Martha provided the Enduro racing side of it and Mr. Nikki Whiles added his input on the jib and playful part. With the spread of skill and background, I feel it allowed us to pull off quite an amazing machine.”
The Mount Vision has two separate suspension kinematics, one for small/medium frames, and another for large/extra large frames. Designers understand that a 205-pound rider will be exerting much different loads on the bike than a 140-pound rider. This extra time and focus put into the design will allow all riders to experience the best of what the Naild system provides.
So what exactly does Naild have to offer? Naild R3ACT — 2 Play has an incredibly long name and complex design, but the basic idea is that it isolates the rider’s mass from acceleration forces. As a result, the bike is influenced as little as possible by rider mass, and rider mass is influenced as little as possible by terrain. Instead, the rear end tracks over the ground, tracing each and every bump. Pedaling efficiency is also increased since rider bob that would normally introduce inefficiencies is drastically reduced.
The upper link of the Naild system features a carbon composite link, and the lower links are aluminum. Keen eyes will notice that the rear fender size has increased slightly from previous Naild bikes on the market, which should do a better job of shielding the large sliding stanchion tube from debris. It’s a nice upgrade even though we never had an issue with our previous Naild bikes, despite taking them out for some of the muddiest riding we’ve ever done.
Geometry is definitely one of the most hotly discussed areas of bike design. It seems one group of riders believes bikes can never be long, slack, or low enough. Meanwhile the other camp may not ride overly steep terrain, and don’t fancy themselves as EWS-level downhillers who prefer a playful and lively bike on their weekly trail rides. Marin chose to play it safe with a 65-degree head tube angle, 330-millimeter bottom bracket height, and 420-millimeter chainstays. Those numbers didn’t come out of thin air however. They were the result of an extensive biometric fit study done by Marin using anthropomorphic data to map and define rider position and center of gravity. It’s the same information that influenced the Naild suspension kinematics changes as well.
Our size large Mount Vision 9 has a 75.1-degree virtual seat tube angle and 64.1-degree actual seat tube angle. The top tube measures 563 millimeters actual, and 626 millimeters effective. Those numbers are on the more conservative side of the spectrum, but numbers only tell part of the story. This bike definitely rides well and puts the rider in a comfortable position, whether sitting or standing. Main put in the hours to do detailed biometrics studies and use that information to guide the geo numbers that work best for body geometry and ergonomics on the bike.
When asked who this bike is for, Cipes stated, “This bike is for the rider who loves the playfulness of smaller wheels but still wants epic days and to crush the descents. It’s really in line with that the Mount Vision has been for Marin, an all-mountain bike that can play in the enduro game but is more at home blasting out of corners, popping wheelies, and having fun!”