Motorbike design is a software studied to help technicians and riders to analyze and to design the motorbike balance and the features of the rear suspension. After further testing and development, daviss design was introduced in june 1983 as the 1984 harleydavidson fxst softail. Factory harley suspension systems are not engineered to suit every riders needs. Progressive suspension was the first to introduce aftermarket shocks for the most popular frame design ever produced.
Conveniently located behind the left passenger peg, the rap system allows for easy tuning of the shocks to account for changing loads or the addition of a. Upgrading to progressive suspension shocks is an excellent upgrade but it can be expensive. From breakout to low rider, these twelve models share the same new chassis. Ikon suspension are pretty good and not that dear,i have used thier progressively wound fork springs in the past and have a set in the shed waiting to go into my deluxe at the moment.
The most recent issue of racecar engineering had a note about some design and 3d modeling software for double wishbone aarm suspensions. If you are not fully satisfied with the handling performance of your harley davidson softail. Two inches of ride height adjustment as well as adjustable for. Harley davidson softail suspension problems, upgrades. Ever since the introduction of the softail frame, companies have been working toward improving the stock suspension.
Refined softail air suspension at cyril huze post custom. Simplified vertical, roll, cornering, traction and braking loads are applied to the suspension system and the response of the system to each is recorded. The frame is 65 % stiffer than the outgoing softail design, which leads to a 34% increase in overall chassis stiffness. Dropped fork springs and stubby shocks in one easy to install and friendly kit. Our suspension system for the venerable softail style chassis is exclusively available as an adjustable ride height version. This new platform is intended to combine the hardriding performance of the discontinued dyna series with. This area can be considered as software in the software, in fact it allows to analyze all the main types of rear suspension, therefore it will be easy not only see the initial characteristics of your suspension, but also design modifications or study a new suspension that has a new behavior in relation at your needs. Aftermarket components like yokes and linkages can be measured and input by the user.
Autoware autoware inc front suspension geometry software. Flstf harley fat boy rear end and progressive airtail. The frame retains the classic softail lines, but its lightweight design and stiffness. Performance machine offers premium chrome and black anodized custom motorcycle forged wheels, calipers and brake systems, air cleaners and intakes, controls and accessories, and even more parts for harleydavidson, vtwin and custom bikes. Motorcycle rear suspension worcester polytechnic institute. During the 1970s, harley enthusiast and engineer bill davis started biulding a rear suspension. Progressive suspension 422 series shocks for harley softail. Susprog3d is the premier kinematic suspension design and analysis tool. Jul 08, 2017 rear shock spring replacement is an inexpensive upgrade for any harley davidson softail model. A softail may bottom out when two up riding, when loaded up, or if youre simply a big dude. Some software includes kinematic capabilities that simulate vehicle dynamics using the designed suspension. Most people dont talk about their bikes suspension with the same enthusiasm with which they talk about its engine. The 422 series offers nitrogen charged dampers designed to provide the smoothest ride, without the heat fade known to oil shocks. The aarm sw looks comprehensive with modeling of toe changes, akerman, roll centers, scrub, etc.
Davis worked alongside harleydavidsons engineers to perfect the design with. Use driveworksxpress to automate the design of a suspension system. Harleydavidson redesigns its softail family from the. Car design tools for chassis, suspension, aerodynamics. The house of harleydavidson serves the greater milwaukee area, including greenfield, west allis, franklin, greendale, cudahy, wauwatosa, new berlin, waukesha, kenosha, racine, northern illinois, and the surrounding midwest. Whether you want want to rake your bike for a larger wheel, change out your trees and forks for a different brake setup or simply a different look, change your rear shocks for a better ride, or switch to an air ride suspension for versatility and comfort, wanaryd motorcycle. The allnew harleydavidson softail models of 2020 patriot. Standardlength shocks raise the seat height of a factorylowered bike approximately 1. Progressive suspension 422 motorcycle shocks hot bike.
Shocks free delivery possible on eligible purchases. Improve the handling capabilities, ride height, style, and comfort of you harley with performance suspension modifications available at. Optimumkinematics developed by optimumg engineers is a suspension and design analysis software. Take an otherwise solid motorcycle, give it an abysmal. To create online store shopfactory ecommerce software was used. Physical attributes, payload, and riding conditions are all deciding factors in the effectiveness of your softail s suspension. Harley davidson unveils two new softail models for india. The birth of the softail the harleydavidson softail was designed in the early 1980s. Jan 26, 2016 there are a number of software to design a suspension system.
Davis had been experimenting with the design of hidden rear shock absorbers on a large framed motorcycle with a. Harley davidson is a very wellknown name in the motorcycle industry. The authenticity of harleydavidson design comes by sweating the. In fact it allows to analyze the geometry of the motorbike, from the calculation of the center of gravity to that of the most significant technical parameters, and quickly to study the changes to vary.
Few are following 1 solid worksfor static design, can calculate the dimension of members a arms springs free length, joints positions and orientations. Sas simplified air suspension custom cycle control s. For windows 7, 8 and 10 with opengl see the faq for more details faq for more. For free suspension design software, with a 5 or 6 livestock operation call, i have the care to 400, very was the functions on and be it to 425, and have them for not 34 sms. Enhance the comfort, performance, and style of your bike with our huge selection of harley softail suspension components. Theyve developed an allnew stiffer chassis with the look of the softail frame, but new monoshock suspension that connects the swingarm to the frame beneath the seat. Softail models feature adjustable rear shock absorbers located beneath the motorcycle. It is now offered with an improved air intake filter system. Softailss come from the factory with the lightest setting for the rear shocks for suspension.
Between shock absorbers, bushings, wheelstires, and alignment, the suspension and steering system can create a number of problems. Softail air suspension analysis chart shotgun shock. It all began when harleydavidson acquired a motorcycle concept designed by mechanical engineer bill davis. Rear shock spring replacement is an inexpensive upgrade for any harley davidson softail model. A valuable tool for those researching softail air suspension for their motorcycles. Dsp suspension design software for automobile springs and. Upper lateral link, lower parallel links, twin trailing link rear a variation of the reversed lower aarm style. Harleydavidson redesigns its softail family from the ground up. This software is specifically designed with a userfriendly interface that makes the process of computer aided suspension design and analysis much faster and more convenient.
It is the creation of bill davis, a harley enthusiast and engineer from st louis, missouri. We have the right 2002 harley davidson softail deuce parts for any job from repair and maintenance to custom motorcycle build projects. Not that the hd softail design is a good rear suspension, its main feature is to look like it aint there. Platinum air suspension has the high quality bleed feed air suspension for your heritage softail air ride. Aug 24, 2017 after debuting in harleydavidsons touring models last year, the new milwaukee eight motor will now make its way to the 2018 softails, too. Shop revzilla for your progressive 422 shocks for harley softail today. What is best software for designing suspension systems. Suspension system for the venerable softail style chassis is exclusively an adjustable ride height version. Being on two wheels makes a properly operating suspension and steering system very important to your safety. The worlds only internal compressor air ride suspension for softails. With brands like progressive, burly, legends and more there are tons of options for your dyna. Flstf harley fat boy rear end and progressive airtail suspension shock absorbers progressive 722 series.
New suspension systems make the ride smoother, while the powerful. Softail air suspension analysis chart this chart is an analysis of different softail air suspensions and their features affecting performance. The company also has a product for rear 4link designs. Lower lateral link, upper reversed aarm, twin trailing links rear a variation on the above. Oct 27, 2001 the most recent issue of racecar engineering had a note about some design and 3d modeling software for double wishbone aarm suspensions. While the softail and outboard shock suspensions work differently, both moderate road imperfections, and are compromises for styling sake. Platinums bleed feed air ride kit is perfect for any motorcycle enthusiast looking to improve the ride and appeal of their motorcycle. All chassis dimensions and specifications are editable. Not only do we offer the latest bikes from harleydavidson, we also.
Haubert built a prototype using his own rear suspension design that closely followed the look of the earlier harley rigid frames. The biggest problem with the stock shocks is that people tend to confuse a stiff or harsh ride with bottoming or a lack of preload on the springs. They function opposite of a conventional shock, as they are inverted. Berms,fournales are supposed to be good,no doubt,there are a few other suspension options around but cannot think of the. For the rider willing to exchange the low profile slammed look for improved ride comfort, the softail comfort flex rear shocks raise the seat height and the riding comfort level. The softail chassis was purely designed for looks, the design in suspension is terrible. After debuting in harleydavidsons touring models last year, the new milwaukee eight motor will now make its way to the 2018 softails, too. In my 24 years of road testing motorcycles, i can count on one hand with fingers left over the number of bikes ive tested that i genuinely disliked, and in the case of the 2020 harleydavidson softail standard, the list has grown by one. Software for auto racing and high performance cars data acquisition systems new and used engineering services and live seminars on performance and racing technology all types of tech info on racecar engines, chassis and suspension setup for road.
Suspension by design windows vista 32bit and 64bit, windows 7 32bit and 64bit. These are not my words but is the most complete softail shock adjustment i have read. Since the softail design was intended more for form than function, the goal of designing a rear suspension that works well has been a lofty one. Introduced in june 1983 as the 1984 harleydavidson fxst softail, the softail frame was not designed by the milwaukee factory. The slammer kit does not require disassembly of the forks. The eight models that make up this popular model family. Harley davidson softail suspension guides hdforums. Spec is software for tuning motorcycle suspension and chassis geometry motospec has been designed for racing use, with a simple interface and clear outputs, to assist motorcycle tuners and race teams make quick and knowledgeable decisions. In april 1980, harleydavidson started work on its own rear suspension design that would have the look of a hardtail motorcycle. Topics share best shock upgrade for softail deluxe. Harley davidson harley softail softail fatboy night train heritage motorcycle accessories harley davidson fxst fxsti softail harley fxst fxsti softail suspension and rear end. Refined softail air suspension published by cyril huze august 25th, 2009 in customs, editorial and suspension. Soft tail air suspensions used to be a nightmare until now.
Rap remote adjustable preload combines high performance shocks with a remote preload adjuster. Our guides on shocks and springs will help you diagnose your suspension issues stepbystep. The house of harleydavidson, in milwaukee, wi, is one of the worlds largest harleydavidson dealers. Suspension design software is invaluable in car or truck design as it does the heavy lifting when it comes to the many iterations of manual calculation that are usually needed to find the ideal geometry. For windows 7, 8 and 10 with opengl see the faq for more details faq for more details. Progressive suspension airtail compressor kit,softail airtail airtail ias. Harley davidson softail deuce 2002, slammer suspension drop kit by burly brand. Motorbike design software to analyze and to design chassis.
The classis 60s sports and racing car rear suspension. Susprog3d is a complete 3d software package for the design, setup, evaluation and visualization of race and road car suspension systems now with support for 30 different suspension types. Some suspension design software packages provide 3d visualization of suspension geometry and movement, and enable the designer to change pickup points and other points in space before reanalyzing the design. This suspension design software lets you take into account various characteristics of your car, such as corner weights, the suspension type, the suspension geometry, wheel widths and offsets, and wheelbase to intelligently select springs coil, leaf, and torsion bar springs and sway bars also called swaybars, antisway bars, or antiroll bars. Softail comfort flex rear shocks 54000041 harleydavidson usa. Harleydavidson motorcycle suspension paris harleydavidson. A softail is a motorcycle with its rear suspension springs or shock absorbers located out of. Autowares racing and performance tech site software for auto racing and high performance cars data acquisition systems new and used engineering services and live seminars on performance and racing technology all types of tech info on racecar engines, chassis and suspension setup for road. Newer commercial software has kinematic features built in that simulate road conditions. Apr 28, 2019 rear suspension is the best design improvement since the front brake.
Standardlength shocks raise the seat height of a factorylowered bike approximately. Davis had been experimenting with the design of hidden rear shock absorbers on a large framed motorcycle with a vtwin engine. The suspension on your harleydavidson affects all aspects of how your motorcycle looks and how it behaves on the road. If my memory is good, cccs custom cycle control systems must have launched the sas the simplified air suspension system for softail about 3 years ago. Progressive suspension was the first to introduce aftermarket shocks for the most popular frame design ever produced and we continue to refine our work. Floater brakes, floating shock, full gearing and rear derailleur modeling, all wheel sizes supported. In 1974 and 1975 davis worked in his garage on the concept of a rear suspension frame where a swingarm was pivoting at the. Includes windows software reads and clears diagnostic. Your ultimate guide to the harleydavidson softail harley. Shocks hidden under the frame make common adjustments difficult on the softail chassis.