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Back when we started building our first bikes in the late 70’s, steel was the only way to go. Fast forward 35 years and steel is no longer the industry’s dominant frame material, but we still love to work with it and ride it. Why? Hit a baseball with a wooden bat then with an aluminum bat and you’ll know why. You want your frame material to soak up streets and trails, not beat you with them. Not to mention the stuff is durable, can handle nicks and dents and gouges without cause for alarm, and is easily repairable. We like the look of those straight, skinny tubes, too.
Reynolds pioneered the techniques of making butted tubing around the turn of the century, and their 531 manganese-molybdenum tubing was the standard of excellence for many decades. In 1995, Reynolds introduced 853 (and a non-heat-treated version, 631, two years later); the world’s first commercial air-hardening steel for bicycle frames and Jamis was one of the first brands to use it in 1997. Welding steel often results in a 40% strength loss, requiring thick tubing walls as an offset. Not so with 853 and 631. This material actually gets stronger at the weld zones, allowing Reynolds to draw the tubing thinner for a lighter, stronger frame.
Though the high performance and buttery-smooth ride qualities of Reynolds 853 and 631 usually grab all the headlines, our frame building is equally over the top. All tubing is cleaned before being cut, jigged and welded. All tubing cuts are de-burred and buffed before welding. We use heat sinks in the head and seat tubes to control distortion. And our low-angle welding tracks form precisely arced, low-profile TIG beads while dispersing welding heat more widely, yielding a frame that requires less post-welding alignment. Add investment cast or water-jet cut dropouts for great looks and extra strength and you’ve got a labor of love that rides like a dream.
Proper fit on a bike is critical for maximum performance and comfort. Which is why micro-adjustment of fore/aft saddle position as well as seat post/saddle height has been around for years. But this hasn’t been the case for threadless steering systems. Lifting or lowering steering height has always required removal of the stem to allow for the addition or removal of spacers. This is neither a simple, nor a “micro” adjustment procedure.
The patented ATS (Adjustable Threadless System) technology resolves this by replacing the standard stem/spacer system with a slotted and ribbed shim that compresses and preloads the headset. With the headset preloaded by this shim instead of a stem, the stem can be mounted anywhere along the ATS shim. Stem height can now be quickly adjusted to within a millimeter by simply loosening one bolt without ever loosening the headset!
With saddle position and stem height fine-tuned to your optimal position, riding will be more efficient, more comfortable and more enjoyable.
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.
We’re famous for our steel bikes and the Codas have a lot to do with that. No frame material makes more sense on beat-up city streets than steel. Why? Hit a baseball with a wooden bat and then hit one with an aluminum bat and you’ll know why. You want your frame material to soak up those streets, not beat you with them. And we use only the best: Reynolds cold-worked, double-butted chrome-moly steel.
The clever and patented ATS steering system allows you to easily adjust your stem height. Pull it up on Monday morning for see-in-traffic commutes and then lower it for fitness rides on the weekend.
Every Coda offers a full complement of eyelets and rack mounts to simplify installation of a rear carrier, fenders and ring lock.
The drivetrains on all our Codas feature long cage ATB rear derailleurs, full-size triple chainring cranksets (48/36/26 or 48/38/28) and big 11-32 cassette blocks. This gives you the dual advantage of having high road bike gearing for controlled pedaling at speed on descents and low mountain bike gearing for easier pedaling uphill. It’s a rider-friendly combination that’s made the Coda series one of our best selling bikes.
Going elbow-to-door-handle in traffic with cars requires a reliable brake system. The Coda Elite delivers with Tektro’s HD-M290 hydraulic disc brakes, which offer high power, excellent modulation & a smooth feel rain or shine. Coda Sport and Coda Comp offer linear pull brakes, which are plenty powerful in any condition. To make sure you’re in complete control, even when grabbing a lot of lever for a surprise stop, we include power modulators on the front brakes of the sport and comp. This modulator absorbs excess lever pressure, assuring controlled braking performance
Low spoke count wheels, with radial lacing or 2-cross lacing, may look all sexy and smart, but wheels built in this manner require highly tensioned spokes in order to support the rim and rider. This over-tensioning results in a harsher riding wheel, which is the antithesis of the Coda raison d’etre. Every Coda wheel is built with sturdy 20+mm wide double-wall rims that allow us to specify wider tires with a larger contact patch for a smoother, more stable ride, and 32 stainless steel spokes laced in a 3-cross pattern that assures rugged durability.
Vittoria Randonneur 32c tires are just the right size for zipping through traffic. Narrow enough to roll reasonably fast, wide enough to provide a secure contact patch. With sufficient air volume to offer a comfortable ride and extra shielding in the casing for superior puncture resistance.
UPGRADES FROM CODA COMP
Tektro HD-M285 hydraulic disc brakes
Shimano Deore 27-speed group
Shimano M475 disc brake hubs
Shimano FC-M431 crankset
Alex TD-26 disc specific rims
UPGRADES / CHANGES FROM 2016
Alex TD-26 disc specific rims
Tektro HD-M285 hydraulic disc brakes
|Frame||Disc Brake Reynolds 520 double-butted chromoly main tubes, extended head tube with reinforced collars, double tapered cromo stays, forged dropouts and fender/rack eyelets|
|Fork||Carbon composite with alloy steerer, disc brake post mounts, low-rider carrier mounts and forged dropouts with fender eyelets|
|Headset||Threadless, 1 1/8”|
|Wheels||Alex TD-26 double wall disc specific alloy rims, 32H, Shimano M475 6-bolt disc hubs with QR and 14g stainless steel spokes.|
|Tires||Vittoria Randonneur with Double Shielding puncture protection, 700 x 32c|
|Derailleurs||Shimano Deore M591 SGS rear and Alivio FD-T4000 bottom-pull front|
|Shiftlevers||Shimano Alivio RapidFire Plus SL-M4000, 27-speed|
|Cassette||Shimano 9-Speed 11-32T|
|Crankset||Shimano FC-T4010 triple, 48/36/26T, 170mm (15-17”), 175mm (19-23”)|
|BB Set||FSA sealed cartridge, 68 x 122.5mm|
|Pedals||Full alloy platform, toe clip attachable|
|Brakeset||Tektro HD-M285 hydraulic disc brakes with 160mm SL wave style rotors and Tektro brake levers with reach adjust|
|Handlebar||Jamis Urban bar, 6061 T-6 aluminum, 25.4 x 10º sweep x 580mm|
|Stem||Jamis adjustable threadless system (ATS) forged aluminum stem, 25.4 x 10º x 90mm (15”), 105mm (17-19”), 115mm (21-23”). ATS shim length 100mm|
|Grips||Anatomic double density kraton|
|Seat Post||Jamis alloy micro-adjust, 27.2 x 350mm alloy clamp with QR seatpin|
|Saddle||Selle Royal S1 with integrated clip system|
|Sizes||15”, 17”, 19”, 21”, 23”|
|SIZE||TOP EFFECTIVE||HEAD ANGLE||SEAT ANGLE||CHAIN STAY||WHEEL BASE||FORK RAKE||BB DROP||HEAD TUBE||STANDOVER||STACK||REACH|
|15||21.46 / 545||71˚||74˚||17.13 / 435||40.75 / 1035||1.97 / 50||2.56 / 65||4.13 / 105||28.27 / 718||20.63 / 524||15.51 / 394|
|17||22.05 / 560||71˚||74˚||17.13 / 435||41.38 / 1051||1.97 / 50||2.56 / 65||4.72 / 120||29.29 / 744||21.18 / 538||15.94 / 405|
|19||22.44 / 570||72˚||73.5˚||17.13 / 435||41.22 / 1047||1.97 / 50||2.56 / 65||5.31 / 135||30.63 / 778||21.89 / 556||15.94 / 405|
|21||23.03 / 585||72˚||73.5˚||17.13 / 435||41.81 / 1062||1.97 / 50||2.56 / 65||5.91 / 150||31.93 / 811||22.44 / 570||16.38 / 416|
|23||23.43 / 595||72˚||73.5˚||17.13 / 435||42.24 / 1073||1.97 / 50||2.56 / 65||6.50 / 165||32.95 / 837||23.03 / 585||16.57 / 421|
FIT & SIZING
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