Cause Some Mayhem
Mountain biking is about precision and control and calculated risk—but it’s also about mayhem, letting it all hang out and just going for it. For all those riders for whom going fast is never fast enough, we introduce the Mayhem. This badboy is the sibling to our Rollik, and with the Mayhem’s launch we are expanding the Spot vision of giving riders lots of wheel size options. The Mayhem is a full-carbon full-squish rig that features Spot’s patented Living Link™ suspension, 130mm of travel front and rear. The Mayhem 27.5+ comes with plus-sized wheels for more rubber on the dirt. It’s an all-season wheel size that makes the Mayhem 27.5+ a year-round go-to ride for snow, mud, sand, dirt or rock. We also offer the Mayhem in a 29er build for fast rolling up and down. Same frame for both. Overall, both Mayhems offer some elegant engineering solutions that meet the needs of modern riders.
Created by Avid founder Wayne Lumpkin, with expertise from Maverick designer Andy Emanuel, Living Link™ takes an engineering solution used in high-performance motorsports—the leaf spring—and applies it to bicycles. The Living Link™ carbon composite leaf spring eliminates the most maintenance-intensive cartridge bearings and is manufactured with the same precision forming as ballistic military helmets. Yeah, it’s strong enough for whatever mayhem you can throw at it. We tested it to three million flex cycles without failure—comparable to 12 years of daily riding.
In addition to decreasing maintenance, the leaf spring increases the frame’s lateral stiffness to provide superior control on rowdy descents. Climbing, the Living Link™ is even more impressive. The leaf spring, paired with a Fox factory-tuned shock, improves pedaling efficiency and rolls through chunder like a hot knife through butter. We believe Living Link™ is a huge leap forward in suspension design, and a state-of-the-art solution for the modern rider.
For the frame, we use Oxeon TeXtreme™ carbon fiber fabric from Sweden. TeXtreme™ provides the best strength-to-weight ratio of any carbon fabric in the bike industry. That’s possible because the fabric’s construction provides more carbon fiber and less epoxy. We are so confident that we offer a five-year warranty on the Mayhem frame. The geometry of the Mayhem also represents our modern philosophy regarding rider position. The bike’s progressive geometry centers the rider’s weight precisely between the front and rear axle--eliminating front-end lift and providing a balanced attack position for both climbs and descents. Yeah, we know, the Mayhem probably had you at ‘hello,’ but read on for a deep deep deep dive into the science of the Living Link™.
Living Link™ Suspension System
The Living Link™ system re-imagines and reinvents full-suspension technology to provide riders with multiple benefits over conventional systems. We accomplish this by replacing the standard, maintenance-prone cartridge bearings with a highly-developed composite leaf spring. We pair it with a finely-tuned air shock, which works in conjunction with the leaf spring, to harness the advantages of both. The Living Link™ leaf spring is both laterally stiff and vertically dynamic, providing a progressive flex through its range of motion. The result is a leap forward in bike handling, durability, longevity and pure fun.
Vertically Dynamic, Laterally and Torsionally Strong
At rest, the Living Link™ is relaxed, with no stresses imposed. As the suspension compresses, the carbon leaf spring flexes. When the rear axle reaches a point approximately halfway through its travel range, the leaf spring reaches its maximum flex. As the rear axle reaches full compression, the leaf spring relaxes again. The result is a spring contribution to the suspension system. Consider it a boost of superpower when you most need it on long technical climbs.
The Living Link™ also improves riding efficiency. It does so by enhancing the spring curve in the mid-stroke of the suspension travel. How? By working in tandem with the shock’s air spring to make the overall curve more linear in the middle of its travel. A more linear curve increases the suspension response in the mid stroke, where a bike spends most of its time. It’s simply a higher quality ride experience than any other suspension technology on the market.
Living Link™ also addresses a flaw of typical suspension systems: lateral flex. The composite plate of the leaf spring provides dynamic flex vertically, but it is superpower stiff laterally. Think about a metal ruler. You can easily bend it with your hands across its flat surface. Now tip that ruler on edge and try to bend it. No chance. The composite leaf spring, acting as a shear plate, works the same way. It promotes and harnesses flex vertically and prevents it laterally and torsionally. Yeah, like we said, superpowered.
Lighter Weight, Improved Durability, 3 Million Flex Cycles
Let’s be honest, most modern suspension systems are pretty good—when brand new. But their ride quality quickly fades under real world riding. Not so with Living Link™, which reduces wear and tear by eliminating the most problematic set of bearings in typical multi-link bikes and replacing it with one composite piece. That magical leaf spring means less maintenance, lighter weight, and one less pivot to impede efficiency. We love mechanics, but this suspension allows you to stay on the trail and out of the shop for many seasons of adventure.
The Living Link™ leaf spring is manufactured to maintain the strictest QC. And we use the same precise molding and CNC machining employed in the manufacture of ballistic military helmets and high-tech prostheses. This use of cutting-edge materials and carefully controlled manufacturing processes results in a leaf spring that can support the weight of two full size pickups. That’s pretty damn tough. So tough that we tested it in the laboratory to three million flex cycles without failure. That’s the equivalent of riding 7 days a week for 12 years. That’s some serious muscle.
Gluey Traction, Rowdy Descending
We are proud to live, work and play in the Rocky Mountains. The riding here is technical and rocky and aggressive. For riders of the Mayhem, that means your Living Link™ system has been battle tested on epic trails. We fine-tuned the Living Link™ to handle all the nastiness that the Rockies can dish out—both uphill and down. It delivers precision control on rowdy descents and gluey traction on technical climbs. That is a rare feat for other rear shocks on the market, which are designed to maximize performance in their “open” modes. The Living Link™ system was designed with an anti-squat response, which enables the rider to climb efficiently with the shock wide open. In addition, the kinematics of the suspension system provide a large pedaling sweet spot. The end game: you will ride more confidently both up and down.
On other suspension systems, pedaling performance is compromised if the shock pressure is too high or too low. Not so with Living Link™. It delivers efficient acceleration in a large range of suspension sag settings. Riders who like it super firm, as well as those who like it plush, are all rewarded with a bike that climbs like a goat with its tail on fire. We accomplish this holy grail of climbing efficiency and descending performance by finely tuning the leverage ratio curve to work harmoniously with high quality air shocks.
Extreme Carbon: Oxeon TeXtreme
A premium suspension system like Living Link™ needs to be on a frame of the highest caliber. So we integrated Oxeon TeXtreme™ into the flesh and bones of the Mayhem. Made in Sweden, we believe TeXtreme™ is the finest carbon fiber fabric in the bike industry. Most carbon fiber is produced in individual strands or filaments, which are then bundled together in tows. Resembling black string or cord, carbon tows typically range in thickness from 1mm to 12mm. Weaving the tows together produces the conventional woven look of carbon fiber products.
Oxeon TeXtreme™ fabric consists of tows that have been spread flat before weaving. This advanced processing makes the material stronger and lighter. The decreased ply thickness and reduced crimp on each carbon filament of TeXtreme™ means our frames have more carbon per given frame thickness than standard carbon weaves. More carbon, less epoxy: this yields an incredible strength-to-weight ratio. The packaging of the spread tow fabric reduces the volume of epoxy matrix when compressed and cured because there is less space between the filaments for excess matrix to collect. Increasing the fiber-to-matrix ratio yields a structure that is lighter for a given strength than conventional woven carbon cloth. In layman’s terms, this means the Mayhem frame is more resistant to impacts.
Advanced Construction Processes
The Mayhem frame and its components are constructed using the most advanced processes in the composites industry. Instead of outdated tube-to-tube or conventional bladder molding, our carbon construction facility fabricates each frame using a rigid EPS foam mandrel. The mandrel is custom formed for the Mayhem, and its parts are shaped in a bespoke mold that represents the shape of the volume contained within the part. The carbon fiber plies are arranged precisely on the mandrel. This technique ensures that nothing can move out of position when the mandrel and layup are inserted into the curing mold.
During the curing process the EPS foam expands uniformly, creating outward pressure on the carbon plies. The foam ensures even distribution of compaction forces on the layup throughout the part. This prevents voids and delamination. The control and consistency of this approach are unrivaled. The benefits of TeXtreme™ and our superior construction methods ensure that each Mayhem frame delivers years of performance and quality. Our production facility works for some of the best names in high-end bikes. We feel so strongly about our frame durability that we back every Mayhem frame with a 5-year warranty.
Top Components, Low-Maintenance Design
There are myriad ways to attach components to a mountain bike frame. The Mayhem features the best performing and most user-friendly standards. It features a 73mm threaded bottom bracket for easy servicing. The Mayhem also has internal cable routing with full-length internal conduits provided for the rear derailleur and stealth-style dropper post. The rear brake housing runs externally for quick brake servicing and no bleed required for installation. Boost 148 rear hub spacing gives fantastic power transfer with room to spare for a 34-tooth front ring on 1X drivetrains.
The Mayhem’s pivot interface is also ingenious. We use a conical interface on the main pivot to create a stout, flex-free connection between the front and rear triangle. Enduro MAX dual-row full-complement bearings are used in high-stress locations. In addition, all pivot bearings are sealed externally with a unique O-ring system to prevent dirt and moisture intrusion. This all means low maintenance and long service life.
The Mayhem’s frame geometry is advanced. We designed the bike to place the rider’s weight precisely between the front and rear wheels. We accomplish this by extending the measurement between the bottom bracket and front axle. A roomy front center creates a stable ride, and mistakes are less consequential. The seat tube has been steepened accordingly, as this helps keep the rider’s weight between the wheels. This geometry eliminates front-end lift and makes technical terrain easier to conquer. All of this means you spend less energy balancing your bike, allowing you to feel fresh and juiced up for those burst of power that allow you to drop your buddies.
The steep seat tube angle of the Mayhem has descending benefits as well. Equipped with a dropper seat post, the Mayhem positions the seat farther forward in the dropped position. This gives you more room to move on difficult descents, placing you in an optimal position for more aggressive riding. You can personalize your seat angle by simply moving your saddle forward or back.
A Better Fit for Riders of all Sizes
While people range vastly in height, weight, leg length, and other physical measurements, most mountain bikes do not scale accordingly. The Mayhem provides a better size range. Our XL features a chainstay length increase of 8mm over our Large model for the added stability that a taller rider with a higher center of gravity requires. In addition, the seat tube angle on our XL frame is slightly steeper than the large, which brings the tall rider’s center of gravity forward on climbs.
On the other end of the spectrum, all sizes of our frames feature a low stand-over height that allows men and women with shorter inseams to find a perfect fit. We don’t skimp on the amenities for smaller riders, either. Some small frames from other brands have no space for a water bottle. Our small Mayhem frame has space for a medium water bottle within the front triangle. That’s great for riders who like to bust out light and fast without a pack.
Want to cause some Mayhem? Riding is believing, so check out listing of demo events. At Spot Brand, we have developed a reputation for thinking outside the box and designing solutions that deliver a better ride. At the office, and in the design lab, we work in a mode of focused control. Get us out on the trail, however, and we are pure Mayhem.
See this diagram for an explanation of Mayhem geometry terms.
|Eff. Top Tube Length||22.1" (561mm)||23.1" (586mm)||24.1" (612mm)||25.1" (638mm)|
|Seat Tube Length||15" (381mm)||17" (432mm)||19" (483mm)||21" (533mm)|
|Eff. Seat Tube Angle||75.2°|
|Actual Seat Tube Angle||73.4°||73.4°||73.4°||75.2°|
|Head Tube Length||4.3" (110mm)||4.7" (120mm)||5.1" (130mm)||5.5" (140mm)|
|Head Tube Angle||66.2°|
|Bottom Bracket Drop||1.0" (25.4mm)|
|Est. Bottom Bracket Height||13.3" (338mm)|
|Wheel Base||45.4" (1153mm)||46.4" (1176mm)||47.5" (1207mm)||48.9" (1241mm)|
|Front Center||28.1" (713mm)||29.0" (736mm)||30.2" (767mm)||31.2" (793mm)|
|Rear Center||17.3" (440mm)||17.3" (440mm)||17.3" (440mm)||17.6" (448mm)|
|Reach||15.8" (401mm)||16.7" (424mm)||17.6" (448mm)||18.5" (470mm)|
|Stack||23.7" (603mm)||24.1" (613mm)||24.5" (622mm)||24.8" (631mm)|
|Standover||27.5" (699mm)||27.7" (704mm)||28.0" (710mm)||28.2" (716mm)|
|4-Star Build Kit||5-Star Build Kit||6-Star Build Kit|
|Shock||Fox Performance Float DPS Evol, 3 Pos. Adj., 200x57||Fox Factory Float DPS Evol, 3 Pos. Adj., 200x57||Fox Factory Float DPS Evol, 3 Pos. Adj., 200x57|
|Fork||Fox Performance 34, Boost, 130mm, 29, Grip||Fox Factory 34 Float, 29, 130mm travel, 3Pos-Adj, FIT4, Boost 15QRx110||Fox Factory 34 Float, 29, 130mm travel, 3Pos-Adj, FIT4, Boost 15QRx110|
|Headset||Cane Creek 40, ZS44/ZS56 ZS44 upper, ZS56 lower||Cane Creek 40, ZS44/ZS56 ZS44 upper, ZS56 lower||Cane Creek 40, ZS44/ZS56 ZS44 upper, ZS56 lower|
|Crankset||SRAM FC GX Eagle, B148, 170mm||SRAM X1 Carbon Eagle, B148, 170mm||SRAM XX1 Eagle, B148 24mm 170mm|
|Cassette||SRAM XG1275, 12-speed, 10-50t||SRAM XG1275, 12-speed, 10-50t, BLK||SRAM XG1299, 12-speed, 10-50t, GLD|
|Rear Derailleur||SRAM GX Eagle, 12-speed||SRAM X01 Eagle BLK, 12-speed||SRAM XX1 Eagle GLD, 12-speed|
|Rear Shifter Lever||SRAM GX Eagle 12-speed, Trigger||SRAM XO1 Eagle BLK, 12-speed, Trigger||SRAM XX1 Eagle GLD, 12-speed, Trigger|
|Bottom Bracket||SRAM DUB 73mm||SRAM DUB 73mm||SRAM GXP 73mm|
|Front Brake||SRAM Guide R, 180mm Centerline Rotor, 6-bolt||SRAM Guide RSC, 180mm Centerline rotor||SRAM Guide Ultimate, 180mm Centerline rotor|
|Rear Brake||SRAM Guide R, 160mm Centerline Rotor, 6-bolt||SRAM Guide RSC, 160mm Centerline rotor||SRAM Guide Ultimate, 160mm Centerline rotor|
|Chain||SRAM GX Eagle||SRAM XO1 Eagle, BLK||SRAM XX1 Eagle, GLD|
|Front Wheel||Baron S1, Tubeless, Boost 15x110||
Baron MK3, Tubeless, Boost 15x110
|Enve M635 27.5+, Boost15x110|
|Rear Wheel||Baron S1, Tubeless, Boost 12x148||
|Enve M635 27.5+, Boost 12x148, XD Driver|
|Tires||Schwalbe Rocket Ron 27.5 x 2.8"||Schwalbe Rocket Ron 27.5 x 2.8"||Schwalbe Rocket Ron 27.5 x 2.8"|
|Stem||Race Face Aeffect, 35 x 60mm||Race Face Turbine, 35 x 60mm||Race Face Turbine, 35 x 60mm|
|Handlebar||Race Face Aeffect, 35mm x 760mm width, 20mm rise, Alloy||Race Face Next, 35mm x 760mm, 20mm rise, Carbon/Stealth||Race Face Next, 35mm x 760mm, 20mm rise, Carbon/Stealth|
|Grips||ODI Vans Slip-on||ODI Vans Slip-on||ODI Vans Slip-on|
|Seat Post||BikeYoke Revive 160mm for XL and Large, 125mm for Medium and Small, Internal, 31.6||BikeYoke Revive 160mm for XL and Large, 125mm for Medium and Small, Internal, 31.6||BikeYoke Revive 160mm for XL and Large, 125mm for Medium and Small, Internal, 31.6|
|Saddle||WTB Silverado Pro||WTB Silverado Pro||WTB Silverado Pro|
NSMB (Oct 2017)
Spot Mayhem 29 on the North Shore - Long Term Review
I try to refrain from gushing on reviews, but I really like this thing. The fun factor is pinned, which is an impressive task with 29" hoops. It allows impressive feats with small travel, and has really opened my eyes to what smaller bikes can be capable of. It's not going to offer the big hit capability of a long travel enduro rig, but for much of the terrain many of us typically ride, the greater efficiency of something like this makes for an all round more fun and effective steed. Sometimes less can indeed be more as the slightly reduced pace in big chunk can often be more than offset by boosted speed and playfulness everywhere else.
Read the full review at nsmb.com