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BiKenG

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BiKenG last won the day on December 6 2017

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About BiKenG

  • Rank
    Moto Grand Prix Racer
  • Birthday 08/26/1952

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  • Location
    Surrey, UK
  • In My Garage:
    VFR1200SP-eVo4
    CBR1000FFX
    VTR1000-eVo2
    VFR800R
    RCBX1000
    CRF450X
    Montesa 4RT
    Triumph ThruxtonR

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  1. In simple terms, max. power only determines top speed. Torque determines how quickly you get there.
  2. Sadly, whenever a manufacturer says they 'retuned' an engine with the implication that they may have dropped power, but increased torque, the reality is usually they simply lopped off the top end, with maybe a slighter fatter torque curve, but rarely is it actually higher. Don't get carried away with thoughts of the apparent extra power of the 'F' model though. Horsepower only determines top speed. Torque is what gets you there.
  3. Well the ECU has complete control, as we know from multiple ride modes on other bikes that can cap the performance. The smaller diam. headers on the CrossTourer will increase torque while restricting top end power and with different ECU mapping that's all that's required to change the engine characteristics. You can check, but I'm pretty sure that when I did I found the pistons, heads, cams and intake stuff is the same on both bikes. Makes huge sense from a manufacturing point of view.
  4. Literally the same engine. The exhaust was pretty much the only way they changed the power characteristics - well and the ECU mapping of course. Intake and cams etc are all the same. I'm not actually sure about the tank mountings. They may even be the same. More likely the front, but maybe even the rear. Don't expect a 'drop-in' replacement on a VFR1200F though. The tank sides are completely different so plastics just wouldn't match up. However, for a one-off naked special that wouldn't be an issue. I considered it for my eVo4, but 180 miles range is enough for me.
  5. Coxy and I have been discussing this since almost the beginning and I truly admire his abilities to create his own frame. But I still wonder, why. Honda did the hard work and made a great frame in cast alloy, why bother with all the effort to make a steel version. But that’s JMO and I still admire his craftsmanship. Regarding the tank size, I have frequently achieved 180 miles of fast riding (not motorway) on a tankful and to be honest, have no desire to go further without a break. But if you want more, a CrossTourer tank is bigger and an easy swap, but looking at the merged VFR and Yamaha tank makes me wonder if an SP-1/SP-2 tank could be more easily massaged to fit. Now we just need to crack Honda’s unique and proprietary serial protocol and a better choice of dash would be possible. Ha, maybe that’s the cause of their recent global hack. Someone was trying to decipher that VFR serial protocol. 😀
  6. I have been following this thread with interest, but have rather lost track of what's available. I am interested in a system that would fit a 5th Gen 800 motor, with 8th Gen front rads and high level underseat mufflers like the 6th Gen. I expect to have to make my own link pipe to the high level mufflers I will be using. Would I be correct in thinking that this is all possible with one of these systems? If so, then I'd like to place a deposit for final delivery to the UK.
  7. I'm also working on an RC46=>RC45 replica so all info on similar projects is of interest. However I have NO intention of eliminating the Single Sided SwingArm as that is so much a part of what makes an RC45. Yes I know, they did try double sided at the end of its racing career, but it was never actually produced with that. For me, it has to be SSSA.
  8. Sorry to dredge all this up again, but just came across this. What the hell does it mean? I guess 214mm is the forkleg centre spacing and that matches what Honda often use on larger bikes, but what's 210mm? There simply cannot be 2 different fork spacings on the same bike. ????
  9. Only just seen this. It's a while since I did this work, but checking the parts list again shows that as I recall, there is a spring circlip on the end of the shaft as it pushes into the FDU. So to pull the shaft out requires pulling hard enough to overcome the circlip trying to stay seated in its groove. I don't now remember how hard it was, but I'm thinking it will be a fair old tug. That's why trying to push the FDU back onto the installed shaft is basically impossible as the shaft telescopes shorter rather than the circlip allowing the shaft to slide into the FDU. So you need to fit the shaft to the FDU, then install that assembly into the S/A. To have 3 hands would help with that. Regarding the rear brake binding, I do recall the carrier being very close to the rotor, but as long as it's not actually touching, that's ok. I cannot imagine how it could be assembled with the carrier in the wrong place. Also if the binding occurs after braking, that would suggest it's a problem with the caliper. Mind you, if yours is DCT, there's 2 calipers and I've never worked on a DCT. You may of course have sorted it by now, in which case, what was found to be the trouble?
  10. If anyone needs help with forwarding a system to the US (or elsewhere), I would be prepared to have it delivered here to me in the UK and send it on to the buyer who would have to make the arrangments and any payments as I'm not currently fully mobile. Obviously it would be simpler for the seller to ship it direct, but if that proves impossible I would do what I can to help.
  11. I cannot imagine any subframe capable of carrying 2 persons plus luggage would have any difficulty with any relatively minor weight increase due to a high level exhaust. Honda systems may be a bit weighty, but surely not that heavy. Anyway, my requirements are not for actual standard models, but they will both be using front rads hence the need for splayed front headers while needing the outlet suitable for 6th Gen high level pipes and mufflers. The 5th and 6th Gen both use the same outlet dimensions, so either a 5th Gen low level or 6th Gen high level could be fitted to either (or so I am told), but is that also true for the 8th Gen? Is the collector outlet the same? There was mention in here that the only difference for the 8th Gen would be the splayed front headers which implies the outlet is the same, but has that been determined? One of my projects IS using a 6th Gen back end and high level exhaust, but with front mounted rad(s). The other will also be high level, but although not necessarily VFR 6th Gen, makes sense if both bikes use the same system.
  12. Quick question about the 8th Gen version. it will need the splayed front headers to clear the rads, but will the outlet accept the 6th Gen high level pipe/mufflers?
  13. I am actually very interested in at least one Lextek system but currently not really in a position to do much about it having been knocked off my bike and only just returned from hospital. Uppermost in my mind right now is suing the idiot in the van who tried to execute a rapid U turn right in front of me, throwing me to the ground and puncturing my lung - not to mention the damage caused to my beautiful eVo4. Anyway... A couple of question about this system. First of all, what is Jeff's special price for us on this and is it suitable for 8th Gen bikes? Specifically I want 2 systems for what will be 5th Gen motors with front rads and high level exhausts. So that means 8th Gen front headers with 5/6th Gen collector and outlet. After all the discussion, I'm no longer sure if the Lextek caters for the 8th Gen front rads?
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