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Motorcycle Rear Suspension
Project Number: RD4-ABCK Motorcycle Rear Suspension A MAJOR QUALIFYING PROJECT REPORT SUBMITTED TO THE FACULTY OF WORCESTER POLYTECHNIC INSTITUTE IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF BACHELOR OF SCIENCE BY JACOB BRYANT ALLYSA GRANT ZACHARY WALSH DATE SUBMITTED: 26 April 2018 REPORT SUBMITTED TO: Professor Robert Daniello Worcester Polytechnic Institute Abstract Motorcycle suspension is critical to ensuring both safety and comfort while riding. In recent years, older Honda CB motorcycles have become increasingly popular. While the demand has increased, the outdated suspension technology has remained the same. In order to give these classic motorcycles the safety and comfort of modern bikes, we designed, analyzed and built a modular suspension system. This system replaces the old twin-shock rear suspension with a mono- shock design that utilizes an off-the-shelf shock absorber from a modern sport bike. By using this modern shock technology combined with a mechanical linkage design, we were able to create a system that greatly improved the progressiveness and travel of the rear suspension. Acknowledgements The success of our project has been the result of many individuals over the course of the past eight months, and it is our privilege to recognize and thank these individuals for their unwavering help and support throughout this process. First and foremost, we would like to thank our Worcester Polytechnic Institute advisor, Professor Robert Daniello for his guidance throughout this project. His comments and constructive criticism regarding our design and manufacturing strategies were crucial for us in realizing our product. We would also like to thank two other groups at WPI: The Mechanical Engineering department at WPI and the Lab Staff in Washburn Shops. -
The Alexandra Palace Sale an Important Single Owner Collection of Collectors’ Motorcycles
The Alexandra Palace Sale An Important Single Owner Collection of Collectors’ Motorcycles Alexandra Palace, London | 23 September 2018 The Alexandra Palace Sale An Important Single Owner Collection of Collectors’ Motorcycles Alexandra Palace, London | Sunday 23 September 2018 at 14:00 VIEWING BIDS We regret that we are unable to ENQUIRIES ON VIEW accept telephone bids for lots with AND SALE DAYS Saturday 22 September +44 (0) 20 7447 7447 a low estimate below £500. +44 (0) 8700 270 090 09.00 to 17.00 +44 (0) 20 7447 7401 fax Absentee bids will be accepted. +44 (0) 8700 270 089 fax [email protected] New bidders must also provide Sunday 23 September To bid via the internet please visit proof of identity when submitting CUSTOMER SERVICES from 09.00 www.bonhams.com bids. Failure to do so may result Monday to Friday 08:30 - 18:00 in your bids not being processed. +44 (0) 20 7447 7447 SALE TIMES LIVE ONLINE BIDDING IS Sunday 23 September AVAILABLE FOR THIS SALE CASH LIMIT ACCEPTANCE Please see page 2 for bidder 14.00 information including after-sale Live online bidding is available for Following a review of its collection and shipment this sale and requires an additional procedures Bonhams will accept SALE NUMBER level of registration prior to being no more than £3,000 in cash from Please see back of catalogue 25250 approved to bid online. Please any purchaser. email [email protected] with for important notice to bidders “Live bidding” in the subject line CATALOGUE £25.00 + P&P no later than 48 hours before ENQUIRIES IMPORTANT INFORMATION (admits two) the auction to register for this Ben Walker The United States Government service. -
The Maxxis Quarterly Winter 2010
THE MAXXIS QUARTERLY WINTER 2010 Aspen XC: The Ultimate Racing Gain pg. 2 Joe Haavisto Is Maxxis’ New England ATV MX Champ pg. 7 Jesse Robinson Hangs in When the Going Gets Tough pg. 13 Maxxis.com Photo: Rich Adams Get the Ultimate RacinG Gain with the Now Available in 29” Size! ØØRace-inspired, low-profile design ØØLightweight 120 tpi casing available ØØAggressive side knobs ØØHigh-volume casing smoothes out rough roots and rocks ØØDual compound provides great cornering traction ØØ29” size offers a larger contact patch for better grip and a smooth ride ØØ26” is a light, fast race tire with excellent cornering traction 2 aspen Xc 3 aUto RacinG ResUlts: On and off-road, Maxxis drivers took titles and top spots in major series. Some of the highlights from this season: ØØ Chris Forsberg has ridden Maxxis to the Formula Drift championship, clinching his title at the seventh and final round of the season. Judgment Day was held October 16-17 in Irwindale, California. ØØ Maxxis’ Ryan Tuerck took the victory at the Formula Drift season finale, along with second place in the championship standings. ØØ Shawn Morris won the TORC Pro Super Buggy championship. Morris racked up 178 points during the series, with performances that included two victories and a total of four trips to the podium. Morris’ win in the final race of the season, Round 9, also netted him the prestigious Borg Warner Championship Cup ring. ØØ Marty Hart took second place overall in the TORC series’ Pro Light class, with four victories and a total of eight spots on the podium during the season. -
Design and Structural Analysis of a Front Single-Sided Swingarm for an Electric Three-Wheel Motorcycle
applied sciences Article Design and Structural Analysis of a Front Single-Sided Swingarm for an Electric Three-Wheel Motorcycle Polychronis Spanoudakis * , Evangelos Christenas and Nikolaos C. Tsourveloudis School of Production Engineering & Management, Technical University of Crete, 73100 Chania, Greece; [email protected] (E.C.); [email protected] (N.C.T.) * Correspondence: [email protected] Received: 31 July 2020; Accepted: 27 August 2020; Published: 1 September 2020 Abstract: This study focuses on the structural analysis of the front single-sided swingarm of a new three-wheel electric motorcycle, recently designed to meet the challenges of the vehicle electrification era. The primary target is to develop a swingarm capable of withstanding the forces applied during motorcycle’s operation and, at the same time, to be as lightweight as possible. Different scenarios of force loadings are considered and emphasis is given to braking forces in emergency braking conditions where higher loads are applied to the front wheels of the vehicle. A dedicated Computer Aided Engineering (CAE) software is used for the structural evaluation of different swingarm designs, through a series of finite element analysis simulations. A topology optimization procedure is also implemented to assist the redesign effort and reduce the weight of the final design. Simulation results in the worst-case loading conditions, indicate strongly that the proposed structure is effective and promising for actual prototyping. A direct comparison of results for the initial and final swingarm design revealed that a 23.2% weight reduction was achieved. Keywords: swingarm; single-sided; Finite Elements Analysis (FEA); three-wheel motorcycle; topology optimization 1. -
Media Information Minicycles Model Year 2021 Introduction 3
Media Information Minicycles Model Year 2021 Introduction 3 Technical Highlights 4 TC 85 5 TC 65 12 TC 50 16 Technical details 20 Apparel 23 Technical Accessories 26 Company 29 History 30 Milestones 30 BACK TO THE INDEX Introduction Husqvarna Motorcycles’ TC 85, TC 65, TC 50 and EE 5 machines allow younger riders to take to the dirt armed with the very best equipment and technology available today. A complete range that features three 2-stroke and one electric minicycle, all models are specifically manufactured to assist the champions of tomorrow. With each motorcycle delivering quality, attention to detail and key updates for 2021, the entire minicycle range ensures highest levels of on-track performance together with striking design and user-friendly aesthetics. Like Husqvarna Motorcycles’ championship-winning line-up of full-sized TC and FC models, the TC 85, TC 65, TC 50 and EE 5 offer advanced performance, youth specific ergonomics and great looks. Inspiring confidence with easily controllable power, youngsters can truly focus on their own riding while having fun. With the TC 85, TC 65, TC 50 models setting the bar when it comes to top-level 2-stroke performance and durability, the EE 5 offers youngsters an all-electric machine on which they can enter the exciting world of offroad motorcycling. Minicycles 2021 I Media information 3 BACK TO THE INDEX Technical Highlights Unrivalled engine performance and rideability WP XACT forks with AER technology - optimal performance and light weight Confidence instilling ergonomics thanks to a -
Design and Experimental Validation of a Carbon Fibre Swingarm Test Rig
DESIGN AND EXPERIMENTAL VALIDATION OF A CARBON FIBRE SWINGARM TEST RIG Reno Kocheappen Chacko A research report submitted to the Faculty of Engineering and the Built Environment, of the University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Science in Engineering March 2013 Declaration I declare that this research report is my own unaided work. It is being submitted to the Degree of Master of Science to the University of the Witwatersrand, Johannesburg. It has not been submitted before for any degree or examination to any other University. …………………………………………………………………………… (Signature of Candidate) ……….. day of …………….., …………… i Abstract The swingarm of a motorcycle is an important component of its suspension. In order to test the durability of swingarms, a dedicated test rig was designed and realized. The test rig was designed to load the swingarm in the same way the swingarm is loaded on the test track. The research report structure is as follows: relevant literature related to automotive component testing, current swingarm test rig models and composite swingarms were outlined. The Leyni bench, a rig specifically developed by Ducati to test swingarm reliability was shown to be effective but lacked the ability to apply variable loads. The objective of this research was to design and experimentally validate a swingarm test rig to evaluate swingarm performance at different loads. The methodology, the components of the test rig and the instrumentation required to achieve the objectives of the research were presented. The elastic modulus of the carbon fibre swingarm material was calculated using classical laminate theory. The strains and stresses within a swingarm during testing were analysed. -
MODERN ENDURO Mike Lafferty
MODERN ENDURO ary Enman, a 15-year-old hare scrambles racer from Bangor, Pa., admits that he wasn’t sure what to expect when he started enduro racing. “For the most part, I didn’t have any idea what I was doing when I lined up for my first enduro,” says Gary, who decided to try the national enduros when he was just 13 years old. “My younger brother, Neil, and I were looking for something different. Our dad used to ride traditional time-keeping enduros, so we decided to give enduros a try. It wasn’t that hard to transition into.” The Enman brothers say their parents are their pit crew, but their dad hopes to ride with them next year. On occasion, the boys get to ride on the same row, and that adds to the camaraderie-building experience. “The enduros have a great community vibe,” Neil says. “It’s like being part of a huge family. Someone is always there to One Of help when you need it.” While racing is the main focus of the weekend, the Enman Motorcycling’s brothers say they enjoy camping, hanging out with their race friends and checking out the terrain. They also try to Oldest Disciplines, experience something local to the race location, whether it’s seeing a national landmark or eating at a local restaurant. Enduros Are Evolving For “If you’re someone wondering if you should try enduros, I say A New Generation just go for it,” Gary says. “It’s nice to go out and race all day, but be able to take breaks and reset your mind. -
Sidecar Torsion Bar Suspension
Ural (Урал) - Dnepr (Днепр) Russian Motorcycle Part XIV: Plunger, Swing-Arm and Torsion Bar Evolution ( Ernie Franke [email protected] 09 / 2017 Swing-Arms and Torsion Bars for Heavy Russian Motorcycles with Sidecars • Heavy Russian Motorcycle Rear-Wheel Swing-Arm Suspension –Historical Evolution of Rear-Wheel Suspension Trans-Literated Terms –Rear-Wheel Plunger Suspension • Cornet: Splined Hub • Journal: Shaft –Rear-Wheel Swing-Arm Suspension • Stroller, Pram: Sidecar • Rocker Arm: Between Sidecar Wheel Axle and Torsion Bar • One-Wheel Drive (1WD) • Swing-Arm – Rear-Drive Swing-Arm • Torsion Bar (Rod) • Sway Bar: Mounting Rod • Two-Wheel Drive (2WD) • Suspension Lever: Swing-Arm – Rear-Drive Swing-Arm • Swing Fork: Swing-Arm –Not Covered: Front-Wheel Suspension Torsion Bar • Sidecar Frames and Suspension Systems –Historical Evolution of Sidecar Suspension –Sidecar Rubber Bumper and Leaf-Spring Suspension –Sidecar Torsion Bar Suspension –Sidecar Swing-Arm Suspension • Recent Advances in Ural Suspension Systems –2006: Nylock Nuts Used to Secure Final Drive to Swing-Arm –2007: Bottom-Out Travel Limiter on Sidecar Swing-Arm –2008: Ball Bearings Replace Silent-Block Bushings in Both Front and Rear Swing-Arms Heavy Russian motorcycle suspension started with the plunger (coiled spring) rear-wheel suspension on the M-72. This was replaced with the swing-arm (pendulum) and dual hydraulic shock absorbers on the K-750. Similarly the sidecar suspension was upgraded from the spring-leaf 2 to rubber isolators and a swing-arm approach in the -
Rider & Classes
Rider & Classes 1. Riders will be defined as Amateur and Expert 2. Certain classes may be divided into groups by lap times or by FMRRA discretion. 2.1. Example: Expert SuperStock 600 will be run as one race but may be divided into PRO and Expert groups based upon lap times during qualifying Overall points and class championships will be awarded as one class but podium winners of each group will be awarded trophies. 3. Classes: 3.1. SuperStock 1000: 2, 3, or 4 cylinders 3.2. SuperBike 1000: 2, 3, or 4 cylinders 3.3. SuperStock 600: 2, 3, or 4 cylinders 3.4. SuperBike 600: 2, 3, or 4 cylinders 3.5. SuperStreet 300: 1 or 2 cylinders 3.6. SuperStock 400: 1 or 2 cylinders 3.7. Formula Twins: 2 cylinders 3.8. Production Twins: 2 cylinders 3.9. MOTO 3: 1, 2, 3, or 4 cylinders 3.10. Formula 40 (Age Group): 2, 3, or 4 cylinders 3.10.1. SuperBike 1000 (AM/EX) 3.10.2. SuperBike 600 (AM/EX) 3.11. Formula 50 (Age Group): 2, 3, or 4 cylinders 3.11.1. Same as Formula 40 3.12. Euro Cup 3.12.1. Same as SuperBike 600 and SuperBike 1000 3.13. Vintage Cup 4. Overall Championships 4.1. All races eligible except for Formula 40 600, Formula 40 1000, and Formula 50 1000. 5. Overall Master’s Championships 5.1. All race are eligible except for Women’s Championship. 5.2. The master’s championship is an age restricted championship based upon the Formula 40 age rules. -
Motorcycle Crash Causation Study: Volume 2—Coding Manual
Motorcycle Crash Causation Study: Volume 2—Coding Manual PUBLICATION NO. FHWA-HRT-18-039 FEBRUARY 2019 Research, Development, and Technology Turner-Fairbank Highway Research Center 6300 Georgetown Pike McLean, VA 22101-2296 FOREWORD The Motorcycle Crash Causation Study, conducted through the Federal Highway Administration Office of Safety Research and Development, produced a wealth of information on the causal factors for motorcycle crashes, and its corresponding Volumes provide perspectives on what crash-countermeasure opportunities can be developed. This study used a crash- and control-case approach developed from the Organisation for Economic Cooperation and Development protocols, which as discussed in this report, has provided insights into more than 1,900 data elements that may be associated with motorcycle-crash causation. The research team produced a final report along with a 14-volume series of supplemental reports that provide an overview of the study and a summary of its observations, the data-collection forms and coding definitions, a tabulation of each data element collected from each form, and selected comparisons with previous studies. It is anticipated that readers will select those Volumes and data elements that provide information of specific interest. This document, Volume 2—Coding Manual, provides the coding conventions used in this study. It provides data that enable the proper interpretation and understanding of the codes assigned to variables of interest during the study. This report will be of interest to individuals involved in traffic safety, safety training, crash and injury reduction, and roadway design and policy making, as well as to motorcycle- and safety-equipment designers, crash investigators and researchers, motorcycle and automotive manufacturers and consumers, roadway users, and human-factors specialists. -
Asd Section 3 General Equipment Standards All Motorcycles Must
Section 3 General Equipment Standards All motorcycles must meet the requirements contained in this section. In addition to the following General Equipment Standards, motorcycle components may only be modified, removed, or replaced with the exceptions and restrictions listed under the specific rule sections for twin- and single- cylinder motorcycles. Section General Equipment Standards Page 3.1 Special Technical Requirements 42 3.2 Engines 42 3.3 Restrictor Plates 42 3.4 Weight Limits 42 3.5 Weighing Procedures 43 3.6 Sound Requirements 43 3.7 Fuel Specifications 43 3.8 Tires 44 asd 3.9 Coolant/Fluid 45 EQUIPMENT GENERAL 45 3.10 Fairing/Bodywork STANDARDS 3.11 Fenders 46 3.12 Numbers Fonts and Sizes 46 3.13 Number Plates 48 3.14 Telemetry and Video 50 3.15 Rider Apparel 51 3.16 Rider and Mechanic Appearance 52 3.17 Advertising, Identification and Branding 53 3.18 Series and Partner Logo Requirements 53 3.19 Rider Suit and Crew Shirt Logo Placement 55 3.20 Rider Responsibility 56 40 41 3.1 Special Technical Requirements 3.5 Weighing Procedures a. Twin-cylinder machines must maintain the traditional a. Weight limits must be met after qualifying and races in the appearance of a flat track twin-cylinder motorcycle. condition the motorcycle finishes the session. Machines must not be constructed to resemble Motocross or Supermoto motorcycles. AMA Pro Racing will make sole b. The official AMA Pro Racing scale used on race day will be the determination if any machine does not meet this criteria. only scale used for weight verification and official weights will be deemed final. -
Mv Agusta 1977 750S America 790 Cc 4 Cyl Ohc Sold
MV AGUSTA 1977 750S AMERICA 790 CC 4 CYL OHC SOLD MV Agusta 750S America Frame # 22110473 DGM-OM Engine # 221-0236 The 750S America model was introduced in 1975. It featured blockier styling and a larger engine than previous MV 750s. MV Agusta’s glorious racing background gave rise to numerous street bikes over the years, such as the 1977 MV Agusta 750S America motorcycle. The 790-cc double-overhead-cam four-cylinder engine in the 1977 MV Agusta 750S America motorcycle V.O.F. Yesterdays - www.yesterdays.nl - offi[email protected] - +31 495 54 60 54 | Page: 1 had its roots in a 500-cc racing powerplant. When shipped from the factory, the stock exhaust system was an odd combination of chrome downtubes with megaphones finished in black crinkle paint which are now separately supplied with the machine. The exhaust system on this 1977 MV Agusta 750S America motorcycle is borrowed from a 1976 model and more stylish than the crinkle black 1977design. A sleek fairing for this 1977 MV Agusta 750S America motorcycle will also be supplied with the machine. Weighing 507 pounds without fluids, the 750S is no lightweight, but its handling at speed belies the mass. The suede-covered racing saddle keeps the pilot in place during the kind of spirited cornering maneuvers the 750S is so well known for. Like previous MVs, the 750S America was expensive and exclusive and everyone knows Italian style and performance have never been cheap. And that goes double for motorcycles built by that most exclusive of Italy’s bike-makers, MV Agusta.