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Suzuki Fiero, Simple Modificcation

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  • Suzuki Fiero, Simple Modificcation

    Dear XBhp, and all its members,

    I need some help with a particular conundrum I find myself in, hope that any expert mechanic, can assist me in the process. This is currently a discussion of possibilities, and I need your help with the technical side. I own a suzuki fiero, 2003 model. She has been beefed up to run a RTR 160 piston, with the respective carb. My mod request is mostly due to the damages incurred, during our trip to Leh-Ladhak on the bike. And I need to upgrade the bike, to full adventure mode, where such damages can be avoided. Let me speciify the damages and then will revert back to the modifications;

    Damages:

    1. Front suspension bent, springs have been powdered.
    2. Swingarm and rear suspension badly hammered.

    To be honest, this is the result of my riding and not her fault. She tried her best, but our load capacity and my weight and the terrain, coupled with my riding skills, just tore her down. In view of this, I would like to make the below modification;

    1. Front suspension upgrade to that of Suzuki GS150R.
    2. Rear suspension upgrade to that of Suzuki GS150R.
    3. Swingarm upgrade to RTR 180 with disc brake option.

    These are my current problems that I have speculated would occur and wondering how I could counter them;

    1. As the front suspension from GS150R is a disc brake model, I need a spoke wheel, with matching disk proportions for the front wheel.
    2. Rear spoke wheel with matching proportions to the rear wheel of an RTR 180, with disk brake.
    3. Ride height increase.
    4. Wheelbase increase.
    5. Suspension action and fitting, to fiero.

    There are a few logical reasons for the upgrades I have mentioned here. Firstly, I would be adding a travel/adventure carrier to the rear, with aluminium boxes, for long range travel. The Fiero would have to hold the weight of me with pillion and luggage without causing too much damage to suspension, in case of bad roads. The suzuki GS150R is a 150+ kilo bike, and the feiro is 130kgs. The suspension designed for the fiero can take a lot of hammering, no doubt, as I have seen it being used even in dirt races. But dirt races, don't span 20,000km. The added weight would require a better suspension, for the long run, and this mod, would give me a twenty kilo leverage over the previous shocks, on normal suspension setting. The increase in ride height should help, avoid any damages from sharper materials to the rear engine casing, or exhaust, though I feel the centre of gravity of the bike would change and a longer wheel base should help smoothen the ride. Flickability on city roads, would be affected, as well as the suspension would be stiffer. So I need to work on those things. I would like this to be a discussion with anybody who has any idea about motorcycle mechanisms, and I am willing and waiting for your advise and an open debate.

    Future mods may include going the fuel injection way, but I am holding of on that for now. I even plan to introduce a tank with higher capacity, but am not sure of the ergonomics of such an act. The centre of gravity or balance, being my main concern.

  • #2
    Re: Suzuki Fiero, Simple Modificcation

    Query Approved

    Cheers!
    VJ
    Once upon a time, a guy asked a girl 'Will you marry me?'
    The girl said, 'NO!'


    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


    THE END

    Comment


    • #3
      Re: Suzuki Fiero, Simple Modificcation

      Dear XBHPians, I know this post must bore most, but any and all help in this matter would be greatly appreciated. If I cannot do this, I will have to spend quite some Vit.M, on a touring option, which doesn't really exist in the current Indian Market.

      Comment


      • #4
        Re: Suzuki Fiero, Simple Modificcation

        Originally posted by WizupWorks View Post
        Dear XBHPians, I know this post must bore most, but any and all help in this matter would be greatly appreciated. If I cannot do this, I will have to spend quite some Vit.M, on a touring option, which doesn't really exist in the current Indian Market.
        dude thats a long list of work... on a logical note i would suggest you to part ways and pick up a used hero impluse. it will do all the task you need without a fuss.
        trust me.. i did ladakh this year and we had an impluse in the group. that rider wasy just flying.

        while ninja bottomed out
        bull was slow
        zma had carb issues
        d200 had fi issues

        the bikes that did not trouble us was cbr250 , impluse (epic bike) , D390.

        further more due to less body fairing and jazz. impluse will be far better mod friendly setup.
        reduce a teeth from front and youd' be good for 2 up on hills.

        just my logical opinion...
        "A good long ride can clear your mind, restore your faith, and use up a lot of fuel."

        RE Bullet 1977 - Current
        RX-100 1995 - Current
        CBZ Classic 2003 - Current
        Activa 2004 - Current
        CBR 250R 2012 - Current
        Ninja 650 2013 - Current.

        Comment


        • #5
          Re: Suzuki Fiero, Simple Modificcation

          Sell that bike, though I wonder if anybody would buy the bike in such conditions at a good price.
          I suggest you buy a used Impulse or a import a KTM dirt bike. The mods you intend to do would be complicated and I don't think you'll find a good enough mechanic to perform the work in India. About GS150R front suspension upgrade, it is not feasible as GS15R has alloy wheels and Fiero has spoke wheels, also you do not want alloys on a dirt setup.

          Don't take it personally, but it seems you have butchered the bike and matter how much glue you apply it would not perform as you are expecting.
          I am back!

          Comment


          • #6
            Re: Suzuki Fiero, Simple Modificcation

            Originally posted by theironhorse99 View Post
            dude thats a long list of work... on a logical note i would suggest you to part ways and pick up a used hero impluse. it will do all the task you need without a fuss.
            trust me.. i did ladakh this year and we had an impluse in the group. that rider wasy just flying.

            while ninja bottomed out
            bull was slow
            zma had carb issues
            d200 had fi issues

            the bikes that did not trouble us was cbr250 , impluse (epic bike) , D390.

            further more due to less body fairing and jazz. impluse will be far better mod friendly setup.
            reduce a teeth from front and youd' be good for 2 up on hills.

            just my logical opinion...

            I do agree the work and tension for it would be grave, but this bike went up Leh, with pillion, and I was pushing her hard, while carrying a load of 30kgs extra. My weight @ 90kgs and pillion @ 55, and load at 30, totals a gross weight of 175Kgs. This seriously strained her, but she still did the climb. I do understand that the impulse can do some serious climbs, but I don't see its long term viability, as her torque rating is still low, and can't carry such loads as mentioned here. I was thinking of purchasing the Inazuma 250 but, she is good tourer on road, not an overall rider of all terrain. This bike can handle such workups, is my belief, and her engine is new and willing to push it, but the body is in no condition after 11years and 2lakh plus kms. That is why I choose to revive her aching joints, to breate a new life into her. Parting ways with this girl can never happen, for it has given me the memories like no other, she is Cleaner not only my machine, she is family. So anyone, still think I'm crazy. :P

            Cleaner: Sell that bike, though I wonder if anybody would buy the bike in such conditions at a good price.
            I suggest you buy a used Impulse or a import a KTM dirt bike. The mods you intend to do would be complicated and I don't think you'll find a good enough mechanic to perform the work in India. About GS150R front suspension upgrade, it is not feasible as GS15R has alloy wheels and Fiero has spoke wheels, also you do not want alloys on a dirt setup.

            Don't take it personally, but it seems you have butchered the bike and matter how much glue you apply it would not perform as you are expecting.
            Cleaner, sorry mate selling her is not an option for me. Mechanics are there i n India, and I can do most the work myself. I just need help from engineers to tell me about its change in performance and what problems I may face. For example, the fixture and ride height changes, procurring spoke wheels with matching disks, etc. Basically this post is a discussion, as to what could be done, and not giving up. It's a challenge to integrate the new into the old, and see the outcome.

            It may be a fiero to everybody, it's family to me!

            WizupWorks

            Comment


            • #7
              Re: Suzuki Fiero, Simple Modificcation

              [MENTION=73074]WizupWorks[/MENTION] bro, don't sell the bike as it has sentimental value to you. I suggest you modify it as there is no point selling it for peanuts especially after the service it gave you. Instead why not check the gs150 suspension out yourself to see if the entire gs150 front is a direct fit. Alternatively why not check to see if impulse front end will fit your bike or not. It is meant for off roading and has proved itself in that regard. Also I suggest you experiment with welding a few metal bits together to make your rear swing arm. Draw your own design by reading up on weight distribution physics. This way you can get exactly what you need instead of plonking another bikes parts into yours and hoping for the best and it'll be cheaper I suppose (could be wrong).
              I always wanted to do something like this but not a lot of Vit.M for the job. Post some pics of the bike once you start the build bro. Good luck 😊

              Comment


              • #8
                Re: Suzuki Fiero, Simple Modificcation

                Originally posted by Balgi View Post
                @WizupWorks bro, don't sell the bike as it has sentimental value to you. I suggest you modify it as there is no point selling it for peanuts especially after the service it gave you. Instead why not check the gs150 suspension out yourself to see if the entire gs150 front is a direct fit. Alternatively why not check to see if impulse front end will fit your bike or not. It is meant for off roading and has proved itself in that regard. Also I suggest you experiment with welding a few metal bits together to make your rear swing arm. Draw your own design by reading up on weight distribution physics. This way you can get exactly what you need instead of plonking another bikes parts into yours and hoping for the best and it'll be cheaper I suppose (could be wrong).
                I always wanted to do something like this but not a lot of Vit.M for the job. Post some pics of the bike once you start the build bro. Good luck 
                Mate, thanks for the first sign of a postive response. I have a general idea of the design concepts I am looking for, and I do understand going for your own design is killer, but to be honest, I am lazy as hell. Anyways, I did think of clunking parts together to fit the bike, due to availability, and how they seem overall. Currently, I need numbers, as I am in a foreign land, away from my bike for the next 45days and need the design ready by the time I get down there. I need the length, angle of current suspension as well as the its complete design. I just needed to see if this plan was worth the effort. I lack the will at times, and your post made a lot of difference. I can't design anything, or post any picture for now, but I plan to start work the minute, I get back to Bangalore and my Fiero. The reason I chose the various aspects of these bikes to assimilate into mine is simple. They have certain characteristics that would help with the overall dynamics.
                Let's start with your option, of replacing the front shocks with that of the Impulse. Thought did cross my mind, but I would need a matching, dual rear suspension swing arm, and the weight distribution of the motorcycle would be all wrong. Currently, the TVS RTR series, swing arm matches the rear suspension connecting rod length of the Fiero, and there by its dimensions fit perfect. The addtition of the Suzuki GS front and rear shocks was to add the stability and weight ratio characteristics of the GS150R, and as the ride height is greater, I suspect the length and travel to be longer, though this is an assumption. The RTR 180 swing arm with the disk break option is longer, and thus would complement in stability, due to any and all ride height increase and provide extreme hold and resistive braking for safety. I plan to use the bike for long tours, on and off the road, example Leh-Ladhak, and with slighly heavier suspension and better weight capacity, my engine can cruise smoothly without feeling any kick backs from increased load of pinnion and travel luggage. I understand that the suspension and swing arm play very less part in the engine being strained, but I guess I would try FI in the future. I need to read up on these things and need to start developing a plan of action. Thus, I decided to bring my probs to the experts, at xBhp, and see what they think should be done.
                I am looking for direction to take in these designs, and to be very honest, ideas, I will keep you guys updated once I start my mods, or any desing concepts I come up with.

                Comment


                • #9
                  Re: Suzuki Fiero, Simple Modificcation

                  Originally posted by WizupWorks View Post
                  Mate, thanks for the first sign of a postive response. I have a general idea of the design concepts I am looking for, and I do understand going for your own design is killer, but to be honest, I am lazy as hell. Anyways, I did think of clunking parts together to fit the bike, due to availability, and how they seem overall. Currently, I need numbers, as I am in a foreign land, away from my bike for the next 45days and need the design ready by the time I get down there. I need the length, angle of current suspension as well as the its complete design. I just needed to see if this plan was worth the effort. I lack the will at times, and your post made a lot of difference. I can't design anything, or post any picture for now, but I plan to start work the minute, I get back to Bangalore and my Fiero. The reason I chose the various aspects of these bikes to assimilate into mine is simple. They have certain characteristics that would help with the overall dynamics.
                  Let's start with your option, of replacing the front shocks with that of the Impulse. Thought did cross my mind, but I would need a matching, dual rear suspension swing arm, and the weight distribution of the motorcycle would be all wrong. Currently, the TVS RTR series, swing arm matches the rear suspension connecting rod length of the Fiero, and there by its dimensions fit perfect. The addtition of the Suzuki GS front and rear shocks was to add the stability and weight ratio characteristics of the GS150R, and as the ride height is greater, I suspect the length and travel to be longer, though this is an assumption. The RTR 180 swing arm with the disk break option is longer, and thus would complement in stability, due to any and all ride height increase and provide extreme hold and resistive braking for safety. I plan to use the bike for long tours, on and off the road, example Leh-Ladhak, and with slighly heavier suspension and better weight capacity, my engine can cruise smoothly without feeling any kick backs from increased load of pinnion and travel luggage. I understand that the suspension and swing arm play very less part in the engine being strained, but I guess I would try FI in the future. I need to read up on these things and need to start developing a plan of action. Thus, I decided to bring my probs to the experts, at xBhp, and see what they think should be done.
                  I am looking for direction to take in these designs, and to be very honest, ideas, I will keep you guys updated once I start my mods, or any desing concepts I come up with.
                  First off bro I am glad I could inspire you. I myself always wanted to do something like this.
                  Secondly, How's bout this. Why don't you take a look at what type of frame your bike has and then take a look at the various suspension types available for bikes with similar frame types. The idea here is to ensure the suspension can simply be plonked on and in most cases bikes with similar frame type have matching or very similar swing arms. as for suspension travel proportions. you can buy and install a shock absorber with more adjustment options (higher travel adjustment) and then its just a matter of reinforcing the swing arm to handle the extra length with the new shock absorber position and reinforcing the frame to handle the extra stress from the raised suspension travel. at the end of the day the bike's suspension should be raised at least 35-50% from original for off roading. but for dual purpose I think you should aim for only 30-40% raised ground clearance as the bike will otherwise be uncomfortably high and also ride quality will suffer. So in general you should be looking at a 60-65mm increase in overall ground clearance which should solve your problem. I think the impulse front should in theory be a direct fit and a perfect match for your ground clearance needs. as for the rear if I remember correctly the fiero F2 was just a bit taller and longer than the fiero v1. so the rear swing arm should be long enough to accommodate a bigger shocker set and should ideally need very little modding to be fitted on your bike.
                  See if what I have suggested works out or else we do have others especially the seniors on this forum to guide us in the right direction. Cheers

                  Comment


                  • #10
                    Re: Suzuki Fiero, Simple Modificcation

                    Originally posted by Balgi View Post
                    First off bro I am glad I could inspire you. I myself always wanted to do something like this.
                    Secondly, How's bout this. Why don't you take a look at what type of frame your bike has and then take a look at the various suspension types available for bikes with similar frame types. The idea here is to ensure the suspension can simply be plonked on and in most cases bikes with similar frame type have matching or very similar swing arms. as for suspension travel proportions. you can buy and install a shock absorber with more adjustment options (higher travel adjustment) and then its just a matter of reinforcing the swing arm to handle the extra length with the new shock absorber position and reinforcing the frame to handle the extra stress from the raised suspension travel. at the end of the day the bike's suspension should be raised at least 35-50% from original for off roading. but for dual purpose I think you should aim for only 30-40% raised ground clearance as the bike will otherwise be uncomfortably high and also ride quality will suffer. So in general you should be looking at a 60-65mm increase in overall ground clearance which should solve your problem. I think the impulse front should in theory be a direct fit and a perfect match for your ground clearance needs. as for the rear if I remember correctly the fiero F2 was just a bit taller and longer than the fiero v1. so the rear swing arm should be long enough to accommodate a bigger shocker set and should ideally need very little modding to be fitted on your bike.
                    See if what I have suggested works out or else we do have others especially the seniors on this forum to guide us in the right direction. Cheers
                    Will be in India for 3 days, over the weekend. Will check up on all the required bits and pieces, and see if I can't pull of some sketches after that, for the final product.

                    Comment


                    • #11
                      Re: Suzuki Fiero, Simple Modificcation

                      Originally posted by WizupWorks View Post
                      Will be in India for 3 days, over the weekend. Will check up on all the required bits and pieces, and see if I can't pull of some sketches after that, for the final product.

                      Will be waiting for the sketches bro.

                      Comment


                      • #12
                        Re: Suzuki Fiero, Simple Modificcation

                        Hello All,

                        I have TVS Fiero 2002 Model and currently I stay in Basavanagudi Bangalore.

                        I have a question regarding Bike Service.

                        In few forum replies, I learnt that Zen Motors in ChamrajPet, Bangalore Provides Good Service. Unfortunately, the Zen Motors vacated the Chamrajpet building, when I went last week finding them.

                        Can any one please suggest Good ServiceCenter/Mechanic in Basavanagudi.

                        Last time, I got it serviced from Ashwa TVS and it was horrible Service.

                        Thanks
                        Krishna

                        Comment


                        • #13
                          Re: Suzuki Fiero, Simple Modificcation

                          Try bharat tvs in jayanagar 2nd block near ashoka pillar
                          sigpicAll India Permit 1+1

                          Comment


                          • #14
                            Re: Suzuki Fiero, Simple Modificcation

                            It may be a fiero to everybody, it's family to me!

                            WizupWorks[/QUOTE]


                            No further explanation required, man. I feel the same way as I am a Fiero owner too.

                            In fact, there are a lot more like me here on a forum dedicated to this fine machine.

                            You can drop by there with your query and all the guys can help you out.

                            @ moderator - can this be merged with the Fiero ownership thread?
                            Ride it like you stole it! But buy your own helmet.

                            Comment

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