Miyata Catalogue 85
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MIYATA THERIGHI' E OF REFERENCE rHE RIGHr APPROACH fHE RIGHr sruw The first mistake you can make when buying a Metallurgy is not alchemy but if Miyata tech bicycle, is buying a bicycle. Quite understand nicians have failed to create gold from base met ably You have an end-use in mind so it seems als, they have succeeded with something nearly reasonable to insp ect an end product. And yet, as valuable . Chrome molybdenum alloyed steel. It the collage of components you see has little to do is milled into exc eedingly lightweight, amazingly with what you get. The right frame of reference is strong tubing. Miyata tubing. We call it Cr-Mo. We looking for the right frame. are the only bicycle manufacturer that processes its own tubing, and , as such , we do not have to settle for merely double butted tubes. We have rHE RIGHr OESIGN advanced to triple, even quadruple, butting. It begins with geometry: the relationships be Butting simply means making the tubes tween the major tubes that comprise the frame. thicker on the ends-where they butt together Tube lengths and the angle at which they intersect than they are in the middle. It makes the tube determine how well suited the frame is for a specif stronger where the frame is potentially weaker. ic task. For example: a racing frame's seat and However, not every joint head tubes are more vertical than other frames. re Ce i Ve s th e s am e ____ STRENGTH RETENTIO The top tube is _shorter, and so is the overall wheel stress, so every joint ! base. This acute geometry pitches the cyclist for doesn 't have to be as ward into an aerodynamically superior posture thick as the joint receiv- ~~-=;;;;;;;;;; that quickly transfers all the power to the rear ing the most stress. Not wheels. The short wheelbase makes the bicycle only would that add un- :!:i.sE1.1 ~-=~= very maneuverable at high speeds - almost skit wanted weight, but some I tish to the untrained. It's a stiff, compact frame joints are actually strong able to withstand the twisting stress of rapid er if they remain a little acceleration. springy . (The springi By contrast, touring frame geometry is more ness a/so lets the frame a b s o r b sh O ck S th a t D BEFORE BRAZING kg/mm' relaxed. Shallower tube angles put the cyclist in a position to spend long hours in the saddle. The would otherwise transfer long wheelbase provides stability under heavy to the cyclist. So, a new inequality emerge..s from loads of touring gear while absorbing the shock our tubing mill that allows each joint, each tube ing conditions of most of our roads. wall to be only as thick as frame dynamics dictate. What is the benefit Intelligent frame geometry is not pro of all this fussiness? Deal ers around the world prietary with Miyata. But claim fewer frame-relat then, that's not all there is ed problems with Miyata to frame making. And than any other bicycle. while others, too, bring their tubes together at the proper angle, that is THERIGHT where we abruptly part their company INVESTMENT Assembly is per Frame Geometry FrameAna tomy A. Seat TubeLength 1. Seat Tube haps the most critical B. Top TubeLeng1h 2. Top Tube C. Head TubeAngle 3. Head Tube phase in the creation of a D. Seat TubeAng1e 4. Down Tube bicycle frame. And it's at E. Front Center [englh 5. Chain Stays F. Chain Stay Length 6. Seat Stays this crit ica l stage that G. Forl<Offset (Rake) 7. Bottom Bracket H. Wheelbase 8. Fork strong opinions are adv I. Drop. anced as to the right way to do things. The amount of controversy is prob- Complete angles and dimensions for most frames are shown on page 15. Mlyata's tubing mill. Without it we would have to settle for double butted tubing. are made by Miyata. Of ably due to the large number of course Miyata had a leg producers involved in this step. up on the car makers. (Not everybody is up to making We'v e been making tubes, but quite a few try to slap frames for nearly a hun them together.) dred y ea rs. The first Miyata makes no claim to being competitive eighty or so we did it by hand, just like everybody with custom frame builders. The custom builder else. Until technology gave us a better-alternative. can give you a skillfully crafted frame built to your exact anatomical requirements. But if they "aver THE RIGHT FINISH age" their geom_etry to fit more than one individual, After construction, the frame undergoes a or attempt to assemble large number of frames, a seven-step process to hide all our good kind of "limited production," they are no longer works. We polish each frame and treat it custom frame builders and cannot truthfully com withzinc phosphate to improvepaint adhe pete with Miyata. sion and to eliminate rusting. The frame is Our assembly begins with investment-cast then painted, using the latest electrostatic lugs, to give joints the tightest possible fit prior to techniques. Each frame is layered with brazing. Why? Because brazing machines cannot undercoat primers and finishing lacquers. fill gaps with the skill Then we bake it. And bake it. The penulti possessed of a master mate touch is the signature of the master- The finishing touch. frame brazier - they See how beautifullywe Miyata. Finally, we coat everything with cover our butts. need gaps to fudge rock-hard, crystal-clear acrylic. Adding an the frame's angles for even deeper luster to the finish, and ensuring that a particular rider. We THICKNESS WEIGHT the Miyata decals are still there when you want the 1--,,--,,------,---1 (ff' have no use for gaps. Tf · 12 T3 FMIIE } world to witness the intelligence of your choice. Our geometry is pre 0.9 0.6 0.7 87!:;g Is it a bicycle yet? Not until we complete the job determined. Our tub W.nga- 1.-0 0,7 0.8 with (despite our original cautions) what you'll prob ing is precisely mitred. ably look at first: the component group. '11-Tn 1,2 0,9 t.Q 1,068g So, as machines align and braze our frames, IJURING BRAZING THE RIGHT CONCWSION 11'K, The frame has reached its majority.And now a carefully balanced set of components is selected to help the frame fulfill its destiny. Shimano. Oia = 72 Compe.Sun Tour. Names to be trusted. Products ~ o proven for superior reliability and performance. Products that are available on other bicycles, to be sure. But the extent to which they're per ~ 60 mitted to perform their various tasks satisfactorily 50 Our computerized frame depends on what they're attached to. If you've J AFTER BRAZJNG kg/mm' brazier Is Immune to late-nights read this far, you can only conclude that if they're and morning afters. attached to a Miyata frame their proper function is assured. better joints result from the precision that comes And that's the right frame of reference. only from investment casting methods. Wherever possible we use computers and robots to eliminate human error. Brazing is too deli cate a proc ess to be vulnerable to an off-day by an assembly-line frame brazier. If he loses his con centration for a moment or two, the tubes will be ,,,•• ,.,,,~ overheated by a degree or two. The result is crys If the cyclist ultimately seeks a metaphysical 1ink between .m~A tallized metal. A joint destined to fail. That can't and machine, then certainly the nexJ.most important contact point 1s happen at Miyata. It probably won't happen with a between the bicycle and the ground. Tires.We'Were n _of quick to ~n trust this job to suppliers, so Miya•a developed a full IJneof super\or skilled frame builder making one frame at a time. It tires with ride characteristics worthy of our frames. Puncture resis does happen all too of ten with product ion frame tant. Nylon belted. Kevlar belted. Knobb1esthat grab hold of solid makers who perpetuate the hand-crafted myth in rock. Tires with tread designs that lieu of a serious investment in advanced (and su reduce rolling resistance wbile perior) methods of manufacturing. providing all the cornering and stopping control you seek. If not the ultimate link, Miyata THE RIGHT KNOW-HOW tires instillthe ultimate confidence. Good of' Japanese ingenuity. Even the Ger mans have finally admitted the Japanese are bet ter at making automobiles than they are. No won der the hottest selling cars in Europe are made in Japan_And the hottest selling bicycles in Europe 3 DAMMIYAl'A Nowhereis the Miyata state-cf-the-arttech nology more apparent than in the Team Miyata.Chromoly triple -butted tubes, investmentcast lugs, Chromolyfront fork with ShimanoUF ends. If you're serious about bicycle racing competition,you should seriouslyconsider this model. Brazed-ons include bottlebasements on down tube and seat tube. Color: Bright Blue with black head tube. Frame Sizes: 50, 52, 54, 56, 58, 60, 63 cm. Speeds: 12 Water bottle 1pc. optional -- - MIYAFA A true competition bicycle specially designed to meet the needs of triathlon enthusiasts.The world-famousMiyata Chromolyframes are engineeredto provide the rider with trouble-free performance. .. an important considerationfor the competitive athlete. Kevlar belted tires and two sets of bottle basementsare but a few of the Pro Miyata features.Color : Pepper Red. Frame Sizes: 50, 54, 57, 60, 63 cm.