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Though we do make bikes with frame geometry and component sizing specifically targeted for women, not every woman is best suited or fitted on such a bike. We want to be clear about that from the outset. As always, the best advice for buying a bike is to go to your LBS, where you can be properly fitted on a bike. One of our “unisex” sizes just might be the perfect fit for you (though a swap for a saddle with a wider sit-bones platform will likely be recommended). But if you discover that you are, in fact, best fitted on one of our Femme geometry bikes, of which there are many, here’s what you’ll find:
• Top tubes will be shorter; stems shorter too, with seat tube angles possibly steepened, all to reduce the distance from saddle-to-bar for a more comfortable reach.
• Head tube angles may be relaxed and fork rake increased to eliminate or minimize the potential for wheel-toe overlap,
• Bottom bracket height may be dropped so standover clearance is increased and center of gravity is lowered.
• Handlebars will often be narrower with a shorter reach to the flats and drops.
• Brakes/Shift levers will often have a shorter reach as well and cranks arms may be shorter for any given frame size in comparison to the unisex version.
• Saddles will generally be shorter and wider, often with a pressure relief zone.
• We may even alter the weight and stiffness of our frame materials to better suit a lighter-weight rider (see SST info below)
And we make all our Femme bikes in a broad sizing range – from 44cm to 54cm, or 14” to 18”, so you can be assured of finding a Jamis Femme that fits perfectly.
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.
Reynolds pioneered the techniques of making butted tubing around the turn of the century and their 531 manganese-molybdenum alloy tubing was the standard of excellence for many decades. The Dragonfly features a new generation of Reynolds steel: 853 DZB seamless, air-hardened/cold-worked chrome-moly frame tubes.
Taking advantage of the high tensile strength of steel without having to worry about strength degradation due to welding is incredibly liberating. Welding steel often results in a 40% strength loss, requiring thick tubing walls as an offset. Not so with the air-hardened Reynolds 853 steel alloys used on our Dragonfly. This material actually gets stronger at the weld zones, allowing Reynolds to draw the tubing thinner for a lighter, stronger frame.
Oversized 44mm head tubes, like tapered head tubes, offer many advantages impacting the handling and performance of the bike. Not only do they allow for the use of tapered steerer forks adding more stiffness, lighter weight and better tracking in rough terrain, but the larger diameter provides a better surface area to weld the main triangle tubes to.
Our sliding dropouts allow for 20mm of adjustment. Slide your rear wheel back to increase clearance for larger tires or remove all those gears and shifters and simply tension your chain for a quiet single speed ride!
The Dragonfly features a chainstay/seatstay disc brace that supports our thin-walled, non-driveside stays from loads generated by the disc brakes. The brace is light, strong, clean and provides vibration-free braking.
Bigger wheels generate more rotating mass once they are up to speed. So it only makes sense to use larger rotors to help control that larger wheel in the most efficient manner possible. Sure, 160mm rotors will stop the bike. But when you’re riding like every second counts, braking for the shortest time possible while keeping the bike under control is the goal. And a larger 180mm rotor up front let’s you do that.
Securing the rear wheel to the frame by threading it into the rear dropouts is not only safer, it’s stiffer. Increasing the rear axle diameter from 10mm to 12mm makes it only stiffer still. The rear wheel tracks directly in line with the frame, for more precise handling, so you can go faster with more confidence. The 142mm hub dropouts provide a self-centering feature for the rear wheel for faster, easier installation.
Our Lock-On grips offer security to ensure no twisting, sliding or migrating even in the roughest, steepest and wettest terrains.
TOP FIVE THINGS YOU NEED TO KNOW
The FOX FLOAT suspension fork features rebound adjust and 3-position damping for unprecedented performance in all types of terrain. It's intuitive to use and can be activated while riding.
WTB Frequency Team i23 TCS tubeless rims showcase what is possible with WT69 alloy. A UST-compliant inner rim profile provides standards-driven consistency while a tape and sealant system eliminates precious rotational weight.
Shimano's SLX 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.
Shimano's 36/22T crankset and 11-36T cassette supplies a 2x10 set-up with a wide range of gear ratios to take on any terrain.
Ritchey's Trail series stem and bars are specifically designed for today's trail bikes and pack a dramatic increase in stiffness and strength over competitor's designs.
|Frame||Reynolds 853 DZB seamless air-hardened steel, 44mm head tube, 31.6 I.D. seat tube, dropper post routing, ISCG05, sliding 12x142mm dropouts|
|Fork||Fox 32 Float Performance Series 27.5" w/3-position compression & lock-out,15mm axle, air spring compression, rebound adjust, tapered alloy steerer, 120mm travel|
|Headset||FSA Orbit, Alloy cups|
|Wheels||WTB Frequency Team i23 TCS 27.5" tubeless rims, 32H, Formula sealed bearing 15mm front and 12x142mm rear centerlock disc hubs, stainless spokes & brass nipples|
|Tires||Vittoria Barzo, 27.5 x 2.25", folding|
|Derailleurs||Shimano SLX Shadow Plus rear and Deore front|
|Shift levers||Shimano SLX, 2x10-speed|
|Chain||Shimano HG54, 10-speed|
|Cassette||Shimano HG50, 10-speed, 11-36T|
|Crankset||Shimano M627, 36/22T, 170mm (14"/16"), 175mm (18")|
|BB Set||Shimano External|
|Brakeset||Shimano Deore M506 hydraulic disc,180mm front & 160mm rear RT54 centerlock rotors|
|Handlebar||Ritchey Trail, 690mm x 20mm rise|
|Stem||Ritchey Trail, 0º rise x 60mm (14”), 70mm (16”), 80mm (18")|
|Seat Post||Ritchey Trail, 31.6 x 400mm|
|Saddle||WTB Volt Comp w/Luxe Zone Cut-Out|
|Sizes||14”, 16”, 18”|
|SIZE||TOP EFFECTIVE||HEAD ANGLE||SEAT ANGLE||CHAIN STAY||WHEEL BASE||BB DROP||HEAD TUBE||STANDOVER||STACK||REACH|
|14||21.3 / 540||68˚||73˚||16.7 / 425||41.1 / 1043||1.7 / 44||3.2 / 80||28.4 / 721||23.1 / 587||14.2 / 360|
|16||22.0 / 560||68˚||73˚||16.7 / 425||41.9 / 1064||1.7 / 44||3.3 / 85||28.4 / 721||23.3 / 592||14.9 / 379|
|18||22.8 / 580||68˚||73˚||16.7 / 425||42.7 / 1084||1.7 / 44||3.5 / 90||29.5 / 749||23.5 / 596||15.6 / 397|
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