Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles
Issue link: https://magazine.cyclenews.com/i/125435
4 DRA GS ( Cont inued [rom page 1) drags. Every man there was a sportsman! Some of the finest motorcycle mec hanics, who have paved the way in new ideas and wizardry, William Butler, Mike Tucker, R. Raslawski and many others make great competition and friends at the same time. Dan Kleiman had hi s new gas- burning T riumph double in th e A gas cl ass but lost in an earlier round a gain s t Raslawskl. I aske d Dan if Ilis mech anical problems had been sol ved with the daY!; raci ng and be repli ed " All I did was find new ones" . I predict, we'll watch Dan turn in the low ele ve ns in a s hort time . Among othe r bik es in the C street cl ass were two oran ge co lo red Hond a 450's an d Walt Magnes s ' paint must have dazzled hi s oppo nents , for he won the the cl a ss turn ing 15.23 at 87.37 . F o r a pl easant vari ety we had a trim youn g lady, Lan aMak, entered in the d~ events . L ana rode her own Honda 160 an d recei ved the cl ass tro phy . She will be back an d promi s e s to squeez e e very bit of performan ce oossible from he r bike. ( Edit or - Lana was a CN Fealure Gir l In lhe Nov. 11, 1965 Issue.) Bill Butl er' s B gas T riumph really came on s t rong in the mil es pe r hour department an d won the cl ass wit h a top end s peed of 112.54. Th e elaps ed t ime was 12.5 0. say, that this lack ments , if allowed to reper cus s ions, not s trip, but to cy cling of safety requirecontinue , will hav e only at the dra g as a whoi e. HOW TO GEAR FOR GO Standard ge ar ing on your mo tor cycl e may nol be best suited for the pe rformance you desire and if it is not correct , the en gin e life may be shortened! Geari ng for maximum co mpe ti ti on pertermanc e and for ideal s treet us e at the s ame . time is impossible and so we mus t ap proach the I wo us e s sepa rately . Quarter mile drag KearinK and T .T . or road rac in g are approach ed with the s ame goal in mind. to attaln maximum s peed at pe ak RP M just s liKhtly short of the end of the long straightaway , then the mac hi ne is giv inK you everyth ing that it c an . LET'S DOIT! F irst step i s to dete rmine the PJimary gear rat io. Coun t the number of teeth on th e s procke t a ttac he d to th e cranks haft an d t he number on the clutc h sprock et. Tile cran ks haft sprock et will be s malle r than the clutch and so divid e th e smaller number into the large r. Le t's say the drive sprocket has 21 teeth and you co unt 42 on the clutch sprocket. Th e ratio the n is 42 di vided by 21 equ als 2 or, 2 to 1. Second s tep is to co unt t he numbe r of te eth on tile counte r Or gearbox s prock et an d the number on the rear wheel. Divid e again the smaller number (co unter shaft)"into the la rge r (rear wheel) , Arter you hav e obtained the two an s wers, . multiply one by the other and you will the n hav e the final top ge ar rat io of the machine. Many owne rs manuals provided with new machines will give you t he fin al dri ve rat i o we so laborio us ly co mpute d . If you have one . che ck your manual before s ha rpening the pe ncil. T hi s is only hal f the a nsw er t o gea ring for go. Next we ek: RATIO plu s R.P .M. equals SP E ED. M EANWHILE, FONTANA DRAG STRIP Fontana' s to p bik e was Don McEvoy. J im Cook rode for Don and took the 650 through the lights at 10.49 E.T. and 131 miles per hour. Th e top gas bik e was owned and ridd en by Ni ra Johnson , Nira turned 11.71 and 115. It won' t be lon g and Nira vs Butl er will be th e rac e to s ee. HI~OUNTAIN ENDURO From page 1 install man datory spark arr esters which wer e s old and installed on the spot. Th e actual run had coo l , su nny wea ther with gusty win ds when the fi rs t ride rs le ft at 8:01 to fac e a cou rs e that inc lud ed fast and slow trai ls . roads. roc ks. creeks and rugged hills. Many riders could n't eve n mak e it to the noon chec k ai Nav aj o Camp where a sup ply and food tru ck was located. Rid ers ente red th e check on a fast sand road an d left on a s teep uphill trai l providin g thriils for the spectators. Many enduro ....technicl ans " , were annoyed to fin d the end marker of the five mil e speedo check blo wn away by wind. but this didn ' t bother the " j us t go" riders who har dly worry about the finer poi nts of enduro ridin g anyw ay . Th e first riders made it in to the last check at the proper time of 2:45, with the la s t bat tered stragglers in by 4:00 , and Dave Ekins on a Suz uki was th e appa rent Sweep stakes winn er . It was a tough run but most competitors came back grinning and said they ' d ride a gain next ye ar . (Co mplete res ults will appear in CN when they are tabulated). .. • SAFETY BY CHRIST F ontan a and Ben Chr ist have di s appointed me. I have a great deal of respect for Mr. Christ and his fin ancial he ac complishments . W n he assum ed managemen t and told us of the improvements th at were to take place. I envis i oned great things. Now t he picture has turn ed grey . Thi s wee ke nd bike s and th eir ride rs were allowed to e nte r and compete witllout any regard to s afety : Chain guar ds and steering dampers wer e not required, leather j ac kets and gloves were not required. What oth er neglect of common common s en s e s afe ty that · t hey will allow in th e future I ha ve no ide a. I can NEW WHAT IZZ IT7 IT'S A BLOWII HARL EY DRAGSTER THAT WAS OUT FOR A CRACK AT LIONS' $1500 P URSE LAST WEEK SPROCKET CATALOG New 24 page 1966 catalog of Aluminum Alloy Sproc kets is now a vailable from Tab-Le e, listing the largest selection of Bolt -on, Overlay, and Trans missi on s prockets i n th e co unt ry: Find any ratio you want for a ll bik es, a ll for immedi at e delivery. You can get the catalog from any 'I' abLoc d e al e r or. s end 25¢ to Ta~Loc . 150 18 E. Ramona Bl vd .. Box 220CN, Bald win P a rk, Ca lifornia, 91706 . • • • •