Manufacturer's Suggested Retail Price excludes shipping costs, dealer assembly/prep, taxes or import duties.
Last year, we made the switch to USA made Enduro Bearings in the bottom brackets on many of our high-performance level models. Why? Because they are the experts when it comes to obsessing about bearings! Enduro Bearings pioneered MAX type bearings, a design previously only used for large equipment such as forklifts and earth movers almost 20 years ago for bicycles to address the challenges associated with mountain bike pivots.
By filling the races with balls, these bearings have 35-40% more load capacity than standard radial bearings. They accomplish this with a special design where the maximum number of balls are inserted into the bearing. The race grooves are deeper on these bearings for more lateral support for the twisting and multiple forces associated with mountain bike pivots. LLU seals give maximum protection against the elements while keeping the 90% fill of Almagard Extra High Pressure Grease inside. We also specify MAX BLACK OXIDE bearings in our carbon frames which get an additional Magnetite treatment for hardness, rust resistance and even more reliability.
In addition to these BB bearings, we’ve also gone ahead and made these bearings standard on our MP4 suspension bikes. The result for you is a much more active and quick rear suspension, eliminating play and wag all at the same time. Out of the box, our DEFCON & XCT suspension bikes with Enduro’s MAX bearings will save you time and money, as they will perform well 2 or 3 times longer than off the shelf bearings.
All our frames and forks are tested continually to meet or exceed (in some cases, well exceed) EN standards 14764, 14765, 14766 and 14781 as well as the new ISO 4210 standards. We conduct these tests at our frame manufacturing facilities, but we also use EN accredited testing laboratories such as Intertek and SGS to verify the results of our own tests. If these tests aren’t telling us everything we want to know about our bikes, we increase the loads and cycles, or we determine another way to test. Where current hydraulic testing machines, jigs and hardware aren’t up to the task of emulating some of the forces and impacts our bikes might be subject to, we’ve designed our own.
We relentlessly cycle test for fatigue from pedaling and torsional forces on every single frame size, with deflection tests for stiffness at every point of the frame. Brutal impact tests with massive weights dropped on fixed frames or forks are performed. Then reversed, with weights attached to the frame, the frame hoisted to a given height depending upon product type, then released.
This destructive testing is enormously instructive and important. And it is in continual process. But it’s our ongoing non-destructive testing of frames and forks fresh off the factory floor that’s just as vital.
For our carbon fiber frames, EVERY frame is weighed to make sure it’s neither resin rich nor resin deficient. We also measure the stiffness of each frame in 6 critical areas as a check on lay-up production. Each deflection test must fall within 5% of the standards our machine and field-testing have established. This weighing and stiffness deflection testing guarantees every single frame we produce meets all Jamis manufacturing protocol and will
deliver the ride qualities we defined and demand.
The leverage exerted by the XCT’s mp4 suspension design is progressive. There are multiple benefits to a more progressive suspension system. The rear shock can be tuned more linearly and pumped to lower air pressures for a smoother, more plush ride without bottoming. Because the rear shock can be pumped to lower air pressures without performance detriment, shock and seal life are optimized. And with a more linear shock tune and reduced air pressure, less rebound damping is required, so a greater range of adjustability is available.
There are multiple benefits of a low wheel-travel-to-shock-stroke ratio. Longer shock and seal life because shocks can be pumped to lower air pressures without performance detriment. Less rebound damping is required, so more range of adjustability is available. And the lower leverage ratio is going to be more plush on bigger hits.
USA made Enduro® Max sealed bearings sustain 40% more load capacity than standard radial bearings & provide more lateral support for the multiple forces associated with mountain bike pivots. MAX bearings use CRC Marine Grease that will not wash out or breakdown under extreme circumstances.
Our 10mm shock hardware is NOT the standard from our rear shock suppliers. We have to pay more for it and our production lead times are usually increased because we specify it. But the increase in lateral and torsional stiffness for our frames and the rear shock durability and performance is worth every extra dollar and every extra delivery day.
15mm thru-axle QR’s offer all the benefits of the 20mm thru-axle design (stiffness!) + the benefits of the standard 9mm QR system (quick wheel removal!) without any of the down sides. The weight of the 15mm system is similar to the classic 9mm system (thanks to the lightweight alloy axle & reduction in fork leg weight) , but it is nearly as stiff as a 20mm axle. The increase in stiffness improves steering & handling significantly. It also puts less stress on the fork’s internals, improving fork durability and performance.
TOP FIVE THINGS YOU NEED TO KNOW
USA made Enduro® Max sealed bearings sustain 40% more load capacity
than standard radial bearings & provide more lateral support for the
multiple forces associated with mountain bike pivots.
X-Fusion has obsessively focused on producing the highest performance,
highest quality and highest value suspension products for mountain bikes
since 1999. They pride themselves on building XF products entirely of
metal parts because they know it’s what you can't see on the inside that
makes a difference.
Shimano's Deore 36/22T crankset and 11-36T cassette supplies a 2x10 setup
with a wide range of gear ratios to take on any terrain.
Shimano's Deore Shadow Plus rear derailleur features an on/off chain
stabilizer system that reduces chain slap and is lighter and more efficient
than a roller type chain device.
Enduro®’s external BSA bottom bracket is produced in the USA using
Grade 10 Chromium balls that are twice as round as the industry standard.
Hardened & polished High Carbon Chromium races yield extremely tough,
durable and noiseless ABEC-3 precision.
|Frame||Triple-butted 6061 alloy, 130mm travel mp4 suspension, asymmetrical chainstays with 12x142mm dropouts, 1.5 - 1 1/8” tapered head tube, internal dropper post routing, ISCG05 chainguide mounts, Enduro® Max sealed bearing pivots, X-Fusion O2 Pro RL high volume shock, 10mm hardware, replaceable derailleur hanger, Formula axle|
|Fork||X-Fusion Streat RL2 27.5" w/15mm axle, 32mm stanchions, tapered alloy steerer, air spring compression, rebound & lockout adjust, magnesium lower legs, 130mm travel|
|Headset||FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer|
|Wheels||WTB ST i23 TCS 27.5" tubeless rims, 32H, Formula sealed bearing 15mm front and 12x142mm rear 6-bolt disc hubs, stainless spokes & brass nipples|
|Tires||Vittoria Goma, 27.5 x 2.25", folding|
|Derailleurs||SRAM NX, 11-speed|
|Shift levers||SRAM NX, 1x11-speed|
|Chain||KMC X11-1 EPT (Anti-Rust), 11-speed|
|Cassette||SRAM 1130, 11-speed, 11-42T|
|Crankset||SRAM NX, 32T, 170mm (15”), 175mm (17-21”)|
|BB Set||Enduro® BSA|
|Brakeset||Shimano M396 hydraulic disc, 180mm front & 160mm rear RT56 rotors|
|Handlebar||Ritchey Trail, 740mm x 20mm rise, 9˚ sweep|
|Stem||Ritchey Trail, 70mm (15”), 80mm (17”), 90mm (19"), 100mm (21”)|
|Seat Post||KS eTen Integra, 100mm travel, Southpaw remote|
|Saddle||WTB Volt Sport|
|Sizes||15”, 17”, 19”, 21”|
|SIZE||TOP EFFECTIVE||HEAD ANGLE||SEAT ANGLE||CHAIN STAY||WHEEL BASE||BB DROP||HEAD TUBE||STANDOVER||STACK||REACH|
|15||22.2 / 565||69˚||73˚||17.7 / 450||43.4 / 1101||0.5 / 13||4.5 / 115||30.7 / 780||23.23 / 590||15.08 / 383|
|17||23.0 / 585||69˚||73˚||17.7 / 450||44.1 / 1121||0.5 / 13||4.7 / 120||31.7 / 806||23.43 / 595||15.83 / 402|
|19||23.8 / 605||69˚||73˚||17.7 / 450||45.0 / 1143||0.5 / 13||5.5 / 140||32.7 / 830||24.13 / 613||16.38 / 416|
|21||24.6 / 625||69˚||73.5˚||17.7 / 450||46.0 / 1169||0.5 / 13||5.9 / 150||33.9 / 863||24.53 / 623||17.24 / 438|
FIT & SIZING
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