1989 Bridgestone RB1 Review
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i~k -0 ANOTHER RACING BICYCLE WITH A CHROME-MOLY frame and Japanese components in the $60(1-$700 price range? Gimme a break, you say. Do these bikes pop out of a mold somewhere in the Far East? A large spacer allows the use of a At first Bridgestone's RB-1 appears similar to other bikes in this category . But scratch the surface (figura- headset with a different stack tively speaking, or the dealer will get mad) and you'll find a bike that's different from the rest. In fact, this one height if replacement becomes rides more like a European road racer. This is a stiff bike that's better suited to fast riding wressary. The SunTour AccuShift than leisurely jaunts . The 73-degree head angle and 74 degree seat angle help give it this responsive feel. But GPX shift lover has 3 settings : 7- the longish 16.25-inch chainstays and 39.5-inch wheel- base keep it from feeling jittery. speed, 6-speed, and friction . The 4.7-pound frame (for our 56-cm test bike) is B I C Y C L I N G r. built in Japan with Ishiwata EX 4130 cornering clearance. The GPX brakes are solid and depend- chrome-moly. The tubing is triple- Not so unusual-but a good choice able-one staffer says they did their job butted, meaning the tube walls have 3 nonetheless-was SunTour's new GPX with nary a squeal on the screaming de- different thicknesses to save weight group, including 7-speed index shifting scent from North Carolina's Mt. Mit- without sacrificing strength. The fork, and round chainrings. Shifting was posi- chell. They feature a small, tightly built with the same steel as the frame, tive and firm across the 13-23T free- wound spring inside each caliper arm, an weighs 1 .6 pounds. Our test bike to- wheel. In fact, I came to prefer it to arrangement that SunTour says retains taled 23.6 pounds, about average for the other index systems I've tried because strong spring action longer. price. the clicks are so pronounced. The "Balanced Response System" Bridgestone made some unusual The AccuShift lever features 3 set- brake levers, which feature a return choices in designing the RB-1 . The stays tings: UL, for index shifting with Sun- spring, operate smoothly. They also have and fork were shaped to accept wider Tour's narrow-spaced Ultra-7 freewheel; a built-in "reach adjuster" that allows rid- tires (up to 700x32C) for winter training . F, for friction shifting; and RE (regular), ers with small hands to move the lever Spokes are by Wheelsmith, a nice touch for index shifting with most standard- closer to the handlebar. (It's done via an for a bike in this price range. (It comes spaced 5- or 6-speed freewheels . The RE allen-key adjustment under the brake with Wolber's 478-gram, 20-mm-wide setting is useful when switching to an- hood near the top of the lever body.) rims, which are light and quick.) Also, a other wheel that does not have an Ultra-7 The hoods feature right- and left-hand large alloy spacer in the Hatta Vesta steel freewheel. (Use the F setting for 7-speed shaping for a better grip. The click-stop headset permits the use of a longer steer- freewheels other than SunTour.) quick-release at the caliper allows you to er tube. This allows the bar and stem to The GPX front derailleur shifts open the arms in case a mishap causes a be positioned higher than with conven- quickly, and the lever's large barrel di- wobbling rim. tional headset spacing. There's another ameter shortens the movement required Other features include an Avocet rac- benefit-if the original headset wears to shift chainrings. What's more, there's ing saddle and 2 pairs of water bottle out, you can replace it with virtually any no chain rub, an improvement over pre- cage bosses. brand, regardless of stack height. vious narrow-cage SunTour road derail- Our test bike had an eye-catching, Instead of the GPX platform pedals leurs. Even when climbing hard out of white-and-black paint scheme. Solid red that normally come with this group, the the saddle, I couldn't make the chain is also available. But whatever color you RB-1 is equipped with SR SP-200s. scrape the derailleur cage in the 2 ridable choose, you can be sure your bike didn't These have track-style cages that don't gears with the severest chain angles come out of a mold. -Scon Martin extend past the body, thereby improving (42x14 and 52x20). See specs on page 100. Want bad-ass performance? Look no further than the oft*00o ilADDOGSSpecialized 3600s .Tough, light and all day comfortable . SPELUAL/ZED . With a new traction hungry outsole. A thermoplastic insole for the right blend of walking flex and riding stiffness. The 3600s are made to last. When it comesto off-road action,these pups make all the other shoes roll over and play dead . F®nax Chrome-moly steel, double-butted Wheelbase 40 .8 in .; 103 cm Seat tube _ 22 .8 in .; 58 cm Top tube - 22 in .; 56 cm Head angle 72 degrees Seat angle 72 degrees Chainstays 17 .1 in .; 43 .5 cm Bottom bracket height 11 in . ; 28 cm Fork rake 2.38 .in.; 6.05 cm Trail 2.09 in .; 5.3 cm SPECIFICATIONS Am' YA Hubs Suzue, sealed bearing, low-flange, quick-release, 126-mm rear axle spacing SCHWINN ALUMINUM 564 Cowif of Origin: Taiwan Spokes 36 front, 40 rear, 14-gauge SrrgIDeabed Reiai Price: $440-$480 stainless, 3-cross DiSbVubd by: Schwinn Bicycle Co . Smea hlc 16 to 22 in . (center-to-center) in Rims Araya 27x11/4 in ., alloy 217 N. Jefferson St . 2-in . increments, 18 in . tested Tires Cheng Shin 27x1% in ., 65 psi Chicago, IL 60606 Frame, 6.7 lbs. ; fork, 2.2 lbs.; complete Drirabraw: COURby of origin: U.S . bike, 32 .3 lbs. Derailleurs Shimano Exage Trail, Srrggesbcd ReW Prim: $570 Franc Tange MTB straight-gauge chrome-moly; Shimano bar-end shift levers, rear indexing Sores Amiable: 19 to 25 in . (center-to-top) in 2- chrome-moly unicrown fork Chain Shimano Uniglide in . increments, 23 in . tested Wheelbase 41.9 in .; 106.4 cm Crankset Shimano Mountain LX, Frame, 4.25 lbs.; fork, 1.6 lbs. ; complete Seat tube - 18 in .; 45 .7 cm Biopace chainrings, 170-mm crankarms, bike, 23 .3 lbs. Top tube 22 .5 in . ; 57 .2 cm Tiioga sealed bottom bracket Freewheel _ Shimano Z 6-speed Franc: Paramount Design Group double-butted Head angle 70 degrees 5086 H3 aluminum, forged aluminum seatstay Seat angle 74 degrees yoke and dropouts ; Tange Mangaloy fork Chainstays 16 .5 in ., 42 .67 cm Brakes Shimano Mountain LX Wheelbase 39 .4 in .; 100.0 cm Bottom bracket height 11 .4 in . ; 28.9 cm cantilevers, Exage Sport levers Seat tube - 23 in .; 58 .4 cm Fork rake _- 1.97 in .; 5 cm Pedals _ Victor 382 Top tube 21 .9 in .; 55 .5 cm Trail 2.64 in . ; 6.71 cm Headset Tioga sealed Head angle 73 degrees YYheds: Seatpost Kalloy, one-bolt Seat angle 74 degrees Hubs Jou Yu sealed, Saddle _ Vetta Gel Chainstays 16.14 in .; 41 cm low-flange, quick-release, black anodized, Bar/stem Hsin Lung alloy Bottom bracket height 10.25 in .; 26 cm 130-mm rear axle spacing Gm hicbes Fork rake 1.75 in .; 4.45 cm Spokes 36, 14-gauge stainless, 3-cross Trail 2.26 in .; 5.74 cm Rims Araya RX-7, 26x1 .5 in ., 520 grams Wbeelc Tires Ritchey Force, 26x2 .0 in . Hubs Shimano Exage Sport Driretraie LX low-flange, quick-release, Derailleurs SunTour XCD-6000, 126-mm rear axle spacing rearindex Spokes 32, 14-gauge stainless, Chain - KMC 3-cross Crankset SR XCE Rims Araya SS45 700x2OC clincher, Enhanced OvalTech steel rings, black anodized 175-mm crankarms, YST bottom bracket Tires _ Schwinn Pro Circuit dual Freewheel SunTour Alpha 6-speed BRIDGESTONE RB-1 hardness, 700x23C, 115 psi Componelia: Didribr6ed by. Bridgestone Cycle USA Drirvtrabr: Brakes Dia-Compe BRS: XCE 15003Wicks Blvd . Derailleurs - Shimano Exage Sport LX, cantilever front, 993 seatstay-mounted centerpull San Leandro, CA 94577 rear SIS rear, Balanced Response System levers Catalbyof Origb: Japan Chain _ _ Shimano Uniglide, black Pedals HTI with straps and Crankset - Shimano Exage Sport LX, nylon clips &Meabed Petal Price: $629-$660 42/527 Biopace chainrings, 170-mm crankarms Headset YST Sores Araiabb1 48, 51, 53, 56 (tested), 59, 63, Bottom bracket . Shimano Sport LX Seatpost Kalloy one-bolt (center-to-top) Freewheel Shimano Exage Sport Saddle Viscount Gelcel lbbkil Frame, 4.7 lbs.; fork, 1.6 lbs. ; complete LX 7-speed freehub Bar/stem GT steel bulge bar, bike, 23.6 lbs. COMPMEntlic 24-in. width; GT chrome-moly 13-cm stem Frarare: Ishiwata EX 4130 triple-butted chrome- Pedals - - - Shimano Exage Sport moly frame and chrome-moly fork Headset - Shimano Exage Sport LX Wheelbase - 39 .5 in ., 100.3 cm Seatpost -_ SunTour internal expanding Seat tube 22 in ., 56 cm Saddle Selle San Marco Linea Top tube 21 .9 in ., 55 .5 cm Bar/stem SR Custom anatomic 41-cm Head angle - 73 degrees handlebar; SR Custom 10-cm stem Seat angle - 74 degrees Brakes Shimano Exage Sport SLR, Chainstays 16 .25 in ., 41.3 cm aero leers Bottom bracket height 10.5 in ., 26 .7 cm Fork rake - 1.75 in ., 4.45 cm Trail 2.26 in ., 5.74 cm Wbeds: Hubs SunTour GPX, low-flange, SHOGUN ALPINE GT quick-release, 126-mm rear axle spacing Spokes 32, 14-gauge, stainless, 3-cross DiddImbd bar: East : North American Cycles Rims Wolber GTX 2 dark anodized 5 Park Dr.