V4 weight loss
- Thread starter Keith197
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I'm running bst rapidtek wheels and will get the gp tek's when they are out. Besides the full exhaust, I switched to the fullsix cf RS bodywork/cf sub/cf stay, and various proti bolt kits. Also switched to the sicom rear brake rotor and the aem quick change hub with ti hardware and ek chain. That said, I have added weight with the frame sliders, swingarm guard, AIM soloDL and AIM camera, billet front brake calipers, stainless pistons and T-drive rotors and the slicks add a little as well.
I tried to save ounces wherever possible and weighed everything coming off and going on but its getting tough to trim at this point.
I tried to save ounces wherever possible and weighed everything coming off and going on but its getting tough to trim at this point.
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I was looking into the Sicom rear rotor did you do the floating style or the solid one. Any pictures of the setup.
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I think I want to do the solid one as well. Does it already have threaded holes for the speed ring. Looks like you have a nut on the back?
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It is drilled for the bolts to install the phonic ring and includes all needed hardware, however make sure you adjust the sensor gap per the manual- I needed to remove some of the shims off the front tc sensor and used them on the rear to get them both to the recommended gaps.
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Awesome thanks for the tip
Excellent job man. So pricy I know but RAM magnesium hub, Ti rear axle, Ti front axle (probably already did that)Ti slave rod, if your running a CNC triple, T steering stem, Front Sicoms ( I have the Braketech CMC but will try the Sicom) Lightweight flywheel, FullSix tank assembly, im guessing you already are at "track only" so no headlight assembly. Totaled, thats 12-15 lbs
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You can practically see the traction control working in that pic...
@endodoc in your estimate, what do you think it costs to make a sub 350 lb V4R street bike? It's not a rhetorical question; I am genuinely curious as to how much one would have to spend to get there.
Hard to say but let's just start with an out of the box R. The obvious issue here is that you’re going to be changing a lot of parts so that means you have paid for a lot of things you are going to look at selling. This opposed to buying a frame, swing arm and motor. Realistically you are looking at 60-80K for basically a V4 SL with all the best parts. You could go nuts and source and SL frame and swing arm like Tamburini did which would add to the cost. Then there is that last few grams that require custom parts but i think those numbers are realistic based on what my receipts show on building the 99s
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What do you not like about the V4 Superleggera? Assuming you don't think that the 337lbs dry weight (or whatever it is) is accurate, what parts do you think it should have to have "all the best parts?"
You would be able to get an unused V4SL for $60k-$80k before too long so you must think that you would make a better bike for that money. I would love to know more about that.
V4 SL sounds like an awesome bike for sure and if you want to start with 100K bike for a project, great. My only point on the SL and Im not falling for that "build a better bike" bait, thats been dead and buried but take the 1299SL for instance. Exclusive 65K bike. Exclusive right up until Tamburini had carbon frames and carbon swing arms and complete motor kits (I have one sitting on my bench now and there is another on ebay) on ebay so throw on a complete full six carbon kit and you got yourself a 1299SL minus the top plate. The aftermarket wheels from BST were not exact the factory SL wheels but they were close so now its up to you to do the numbers and since I haven't seen the V4 SL I can only go by what i have seen which is the 1299SL and comparatively the BMW 1000RR super whatever edition that was about the same price. BMW gave you EVO calipers, FGR300 forks, GP billet masters etc. From a component perspective, the BMW gave you better parts so for the money. So the V4SL isn't going to give you CMC/C rotors. Your not getting RR or evo calipers, no GP master cylinders, no Ti axles, no mag hub, no carbon tank, one choice of rear sets, No SBK forks, stock (except for a # plate) stock QS etc etc. I would bet even money that YongR, Rogue, Gecko, Mick, Gun Moto, etc given a check for 80K could except for the frame and swing arm (I would use the Pierobon swing arm anyhow for a track bike) that any one of those guys could give you a match for the factory bike. I however could not as I have been told here that I personally am not capable of building a comparable bike, so I take myself out of it but yes for 80K a skilled individual could most certainly can build a lighter (not by much) and better (track bike) that the V4 SL is going to be off the showroom floor. Additionally I don't see many guys modding a stock V4 SL. There was one guy who did use an 1199SL as a starting point for a track built (RS16) and I think he put 80K into it. Full MM electronics etc. Im not going to comment on dry weights as they tend to be wrong, Is 337 dry a reality? Hmmm don't know, ill know when its sitting on a scale.
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I know the 1199SL you speak of. It was built by Boulder Motorsports and was at Moto Corse Performance in Ft L for a long time. It’s a pretty sweet build and the electronics are insane.
I wouldn’t modify a V4SL and I agree with you that very few if any would do that. That’s not where I was going with the question. I was more curious about where the differences would be. A V4SL, for whatever it is or is not, will always be something special. What we are discussing here is something else entirely. It’s a true build.
Any thoughts of a V4SL aside, I think that building a V4R track bike could be quite ideal and I think the time to buy and build would be soon. That’s why I was asking. However, I like my track bikes without electronics (maybe that will change soon) but the idea of a “standard” electronics package has some appeal because it’s easier to care for and easy to adjust (or turn off).
And yes, I know you can get the 1299SL frame and sa from Tamburini which is really cool project stuff. I love that some people have done that already.
EDIT: my sweet spot for track bikes is like 130-150 rwhp with a fairly light weight. I have ridden a V4 on the track but it will take some adjustment to get comfortable with a V4R on the track.
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Im with you on the electronics. I don't know how to use any of that stuff anyhow. Too fancy for me. Here is a solution I did on the 99s. Stock ECU with the Woolich tune, Stock BBS, Stock dash, Tamburini harness (GP quality) Strain gauge QS. Bulletproof. The harness has a quick disconnect for the ABS harness as well. If you like the SL for what it is and plan on keeping it in the stable etc, coolest bike put there for sure. If however you need something customized to your envelope, I just go down the build list and start taking notes. Here is the harness. They make them to order and to spec. I have them made with all the usual block off plugs deleted.
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Like Ed mentioned the saga from the factory will never end R's and SL's in particular add a little carbon fiber (wheels/chassis) and some cheap grade titanium bits and crap factory parts for $80-100k its a disaster. Stand alone motor, Tamburini harness, Woolrich tune, strain shifter, H2o SBK radiator, Full Six body work, tail section and tank good platform start. All the rest the key components light battery, full Akro (SD11), Ti front/rear axles, hardware and leave all the crap not needed it be easy to get to 350 pounds. I am pretty close on my 99RS to being there once I do the race front cowl with single light mod I will be there. Will post up some recent pics later this week.
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