出处 : escape 作者 : James Huang
With the Interbike trade show behind us (and with absolutely no indication that it will ever return), this year's Sea Otter Classic is bigger than ever. Road, Mountain & Gravel?Big & Small Brands?Parts&Accessories?Parts&Accessories?You name it, it's all here.
The third story (and at least two or three wheels to come, FYI) covers a wide range of topics, including Ritchey's gorgeous new Montebello frameset, 5DEV's stunning titanium and aluminum machined parts, the latest 3D-printed helmet technology, Mavic's re-emerging wheel lineup, and more.
Would it cost you $1,200 to get a new road/gravel crankset and platter for the 5DEV?
5DEV新款曲柄的造型绝对引人注意。
5DEV uses titanium alloy billets to machine each crank. The back of the crank arm is hollowed out and then a separate titanium plate is laser welded to form a hollow sealing structure. In the right light, you can see the milled weld.
5DEV has also introduced a new pneumatic platter for road and gravel use. Currently, only 42T and 52T specifications are available, and only applicable to SRAM eight-nail interfaces, but more specifications may be added as needed. They are machined from billet aluminum, which is then bonded to a separate shell on the back to form a hollow structure.
Because nowadays, pneumatic gravel platters have become fashionable.
5DEV称其新款盘片与SRAM Transmission、Eagle和Shimano 12速链条兼容。 请注意正负齿的造型。
The machined crank of the 5DEV is certainly different, but it also has a very large range of lengths. The left crank in the picture is only 135mm long!
The main thing that caught your eye with the S-Works Tarmac SL8 on display at the 5DEV booth was the fancy titanium crankset, but did you notice anything else out of the ordinary? That's right, the SRAM Transmission rear derailleur that fits to a road frame with the help of 5DEV's home-made UDH converter. It obviously works with most of the current Tarmac, Crux, and Diverge and costs $180.
The 5DEV also has titanium (left) and aluminum (right) mountain bike stems. Interestingly, the vertical clamp ring is machined into an egg-shaped shape, so that the bar can be more easily threaded through the two-bolt clamp ring.
Titanium stems are available in a variety of finishes, including natural, bronze, purple, and teal. New is the Black DLC option.
Parlee展示了其新 Ouray All-Riad/耐力公路车，外观相当漂亮。
Compared to Parlee's pipe-to-tube technology Z-series frames, the Ouray has a more modern look. Also, be aware of completely hidden wiring, which can complicate maintenance work, but is also a need for many customers.
Parlee chose to use a paint-free finish on Ouray because he was confident in the lamination effect in the mold.
Instead of using a traditional varnish, Parlee used some sort of "space wax" to protect Ouray's frame surface.
Instead of bothering to mold the lid for the manifold cover, Parlee opted for 3D printing for compatibility with various brands of handlebars.
Although ownership of the company has changed hands, founder Bob Parley is still with the company, and the Z frame is still handmade in Beverley, Massachusetts.
The custom livery is clearly a highlight of the Parlee Z-Series frame, and it's especially glamorous in the California sun.
Ritchey's new Montebello is an audax-style steel road bike designed for long rides. There may be a snack or two along the way, or a meal start-up. The Montebello could be available around August, with a frameset retailing for $1,600. It's a pity that baguettes are not included in this price.
Foreign media said that they liked this classic tee shape very much. According to Ritchey, the Montebello can be tucked into 700×36mm wide tires when the fenders are installed, compared to 700×40mm wide tires when not installed.
The custom head tube features a built-in bowl set and external cable routing for easy maintenance. If you also want to use the front electric hub, pay attention to the inner cable routing holes of the fork.
Gorgeous rear fork blades with replaceable tailhooks. The front and rear are equipped with fender fixing holes.
▲ If you want to pack more luggage in the front, then come on.
Also on display at the show was the new P-29er, a 29-inch steel hardtail frame with a wheel diameter that can be used both as a regular XC race car or in some odd outfits, as shown here.
At that time, Western journalists were full of longing for the Ritchey P-20, and now, of course, he also likes the appearance of this new P-29e.
However, foreign media are not very satisfied with the rear disc brake seats on the new Ritchey P-29er.
The Mavic's return isn't dominated by top-of-the-line wheelsets worth thousands of dollars, but regular aluminum wheels like the Allroad S.
It has an inner width of 25mm to pair with larger wide tires, and interestingly, it comes with a shackleless (to be fair, this form is not very controversial in low-pressure conditions). It is claimed to weigh just under 1800 grams and retail for $530 a pair.
The same spoke length on the left and right and front and rear is a common feature of Mavic's latest wheelsets.
The spoke caps of the Mavic Allroad S are threaded directly to the rim, so there is no need for a hole in the tire bed, making tubeless use more reliable for long periods of time and eliminating the need to reinstall the tire mat.
Mavic's new Cosmic S carbon road wheelset is very cost-effective. For less than $1,000, you can get a 42mm high, 21mm inner width vacuum ring, a nominal weight of 1,595 grams, and an Infinity hub with a 24-tooth planetary ratchet.
However, the Cosmic S uses traditional spokes and rims, so tubeless pads are required to install tubeless.
The Mavic Cosmic SLR 32 Disc is designed for lightweight riders, featuring a 32mm high, 21mm inner width carbon fiber vacuum ring, Mavic's planetary ratchet Infinity hub, and stainless steel flat spokes. It is claimed to weigh just under 1400 grams and retails for $2255.
Once you've used a vacuum wheelset without a tire pad, it's hard to go back.
The Mavic Crossmax SL Ultimate 30 is a top-of-the-line mountain carbon wheel with a 30mm inner width rim, stainless steel flat spokes, planetary ratchet hubs, a claimed weight of 1395 grams, and a retail price of $2250.
However, the Crossmax SL 30 requires a tubeless pad. Alas, obviously you can't have everything.
With its nominal weight of 1930 grams, a wide 30mm inner width, planetary ratchet hubs, and non-perforated vacuum rings, the Crossmax XL makes a case to continue using aluminum wheels, all for less than $600.
Excess material is milled out between the Crossmax XL spoke holes to save a few grams of weight. Notice how the nipple is screwed directly into the rim.
The Crossmax XL is also non-perforated. Again, once the non-perforated ring has been used......
Mountain wheels are still available with six-peg and center-lock options.
The custom Firefly titanium melon car is ostensibly a Mavic show car, but the frame itself deserves more attention.
Firefly does the casing internally. Leave a small reinforcement ring at the kettle installation.
3D printed titanium fork shoulders and legs designed by Josh Ogle paired with tig-welded titanium legs and bonded carbon steerers.
▲The rear fork piece is also 3D printed
The anodizing of the frame is incredible, and the air pump is amazing!
Foreign media have seen Stein & Fenton's post on Instagram, but this is the first time he has seen the brand's real car with his own eyes.
Are these frames real? Are they fake? They seem to be in development all along, but they're beautiful.
KAV Sports continues to develop its 3D printed helmet technology and showcased its new Nova at this year's Sea Otter Show.
The vast majority of bicycle helmets use energy-absorbing materials made of expanded polystyrene (EPS) foam, sometimes with honeycomb structures such as Koroyd or WaveCe, while KAV Sports uses a printed polymer honeycomb structure that is then covered with a separate shell.
The honeycomb structure is actually double-layered, with the outer layer having a harder outer wall to better cope with high-energy impacts, while the inner layer has a softer inner wall to cope with low-energy impacts.
According to KAV Sports, the double-layer structure also provides a degree of shear protection to better resist rotational forces, and the honeycomb structure is said to act like a collapse zone in the event of a straight line impact. The latest Nova has received a five-star rating from an independent testing laboratory at Virginia Tech.
The printed honeycomb padding, or helmet itself, isn't very comfortable, but each KAV Sports helmet is custom 3D printed for the customer's head shape. There are no stock sizes for helmets, at least in theory, each helmet should fit the user perfectly.
A notable upgrade over KAV Sports' earlier models is the adoption of a somewhat elastic printed suspension to help secure the helmet to the back of the head.
CeramicSpeed's new RS Big Chicken Leg is certainly much better looking than the old one, and it's also stronger and more durable.
CeramicSpeed's 3D-printed titanium guide wheels don't offer any performance advantage over the brand's standard oversized guide wheels. And they don't come cheap, with whole drumsticks costing up to $1900. But then again, things that are desirable usually don't have a logical reason.
Redshift Sports certainly isn't the first brand to offer a "swallow bend handle". However, in the eyes of foreign media, the uninterrupted transverse part not only looks more beautiful, but also provides convenience for the installation of accessories.
RedShift Sports offers top Shelf bars in aluminum alloy in a variety of widths and heights, with more products in development.
The double-layer design provides a particularly stable platform for mounting the handlebar bag.
Redshift Sports also has three ShockStop suspension seatposts. The ShockStop Endurance has 35mm of travel for the most comfortable feel, and the ShockStop Pro Race has only 20mm of travel and feels very stiff (especially when going uphill).
Redshift Sports' high-end Arclight LED footpegs feature a modular design that can be configured in four different ways depending on the user's preference.
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Smith's new Triad helmet is primarily aimed at road and gravel users, and also features a more strategic Koroyd honeycomb padding. Some models are also equipped with Aleck crash sensors, which can "measure the force of the impact, confirm the user's status, and send emergency information with GPS location if necessary." While the collision sensor needs to be paired with a smartphone, it can be used without a subscription.
The highly recognizable model (left) is not only fluorescent, but the entire lower half is covered with glass particles to improve visibility in low-light conditions.
Compared to the old Forefront 2, Smith's new Payroll off-road helmet has more coverage on the sides and rear, with Koroyd liners strategically placed along the sides and more open air vents in the middle for better air circulation.