VFRRR Posted February 28, 2016 Share Posted February 28, 2016 Hi, I have been looking into making a single nut conversion for the Honda VFR800, because I like the way that it cleans up the rear of the bike and allow me to use other wheels, from a Ducati or other single sided swingarm bike. I will do it on my VFR800 which is now being rebuild from a damaged bike, and taking form. more stuff is to be done to this bike:-) forks, rear end clocks(CBR1000RR) fairing for a CBR1000RR also, so many things are getting done. The single nut conversion I was thinking of doing like the RC45 HRC axle and nut with left hand thread M46 and with a nut the same as the RC45 HRC one with 56 mm socket. I have done it like BLS, Larry did on his RC45. Making an insert for the NC30/35 axle, press fitted and welded to the NC30 axle. On my bike I am using a NC30 axle, you can use a NC35 also. So if anybody else than me, is interested in this conversion, I took delivery this Saturday, of 8 sets of single nut conversions. It where cheaper for me to get all eight than just two sets for me and a friend. price for each set where 80 £ UK. Just the HRC RC45 nut is around 95 £ UK each from Honda. I have the threaded part for the axle and the 46 mm nut with left hand thread. Price is depending on whether you do your own axle or send one and I send one back to you finished ready for you to install. If anybody is interested in these give me a PM. I will also do a lightweight rear brake, as I have made for my RC45. It's using an ISR caliper and disc and my own holder.I will try to get some pictures up today. A few pictures are uploaded. 2 Quote Link to comment Share on other sites More sharing options...
stryker Posted February 28, 2016 Share Posted February 28, 2016 Anybody know if this would fit the 4th gen? Quote Link to comment Share on other sites More sharing options...
VFRRR Posted February 28, 2016 Author Share Posted February 28, 2016 I don't know if the NC30/35 axle fits the 4th gen hub. I think there was a thread on this question earlier... Quote Link to comment Share on other sites More sharing options...
SEBSPEED Posted February 28, 2016 Share Posted February 28, 2016 I am interested. I do my own welding. What else is needed for the conversion? 1 Quote Link to comment Share on other sites More sharing options...
VFRRR Posted February 28, 2016 Author Share Posted February 28, 2016 Hi Sebspeed you will need to use the sprocket carrier from the nc30/35 reverse or do a cush drive like Mohawk and HighSideNZ have done. Using a sprocket carrier for the Ducati. HighSideNZ have som really nice drawings on his thread about the conversion. thread are on this link: http://www.vfrdiscussion.com/forum/index.php/topic/81706-single-nut-rear-axle-conversion-6th-gen/ and no problem for me, if you do your own welding, it's a lot cheaper than sending an axle across the world:-) Quote Link to comment Share on other sites More sharing options...
Member Contributer slo1 Posted February 29, 2016 Member Contributer Share Posted February 29, 2016 pm sent Quote Link to comment Share on other sites More sharing options...
Member Contributer BusyLittleShop Posted February 29, 2016 Member Contributer Share Posted February 29, 2016 Nice job... I may ante up myself... did you mod your RC45 axle too? Quote Link to comment Share on other sites More sharing options...
VFRRR Posted February 29, 2016 Author Share Posted February 29, 2016 yes, I will do, but also have the original HRC axle for it:-) Quote Link to comment Share on other sites More sharing options...
Member Contributer Rush2112 Posted March 2, 2016 Member Contributer Share Posted March 2, 2016 I'm interested. Quote Link to comment Share on other sites More sharing options...
VFRRR Posted March 2, 2016 Author Share Posted March 2, 2016 Hi Rush Can you PM me with your adress and I will get back to you with shipping cost.:-) Quote Link to comment Share on other sites More sharing options...
VFRRR Posted March 5, 2016 Author Share Posted March 5, 2016 now the price for axle insert + nut including shipping for the US is worked out. it is 145,50 plus paypal fee of 4%. There is 2 left.. 1 Quote Link to comment Share on other sites More sharing options...
VFRRR Posted March 5, 2016 Author Share Posted March 5, 2016 (edited) And now for the brake system, I will have on my bike.. I mentioned in my first post in this thread, that I will have a very light weight rear brake on my bike. I have made the rear brake system for my RC45 years ago. The brake system consist of a caliper from ISR, Sweden, which is very light, 240 gr. with pads, a disc also from ISR made to order and the brackets, which I made for it. The total weight for it is 900 gr. and it is capable of stopping the RC45 as road bike, maybe with a weight loss of approx. 10-12 kg. I do not have the weight for the standard rear caliper, so I do not know how much weight it will save on my bike. Other mods I am working on right now is a complete rebuild of the rear end, using my own subframe and a Honda RS125 race tail (pictures soon) Edited March 5, 2016 by VFRRR 2 Quote Link to comment Share on other sites More sharing options...
The Phantom Posted March 5, 2016 Share Posted March 5, 2016 Wow, that rear brake system is beautiful. Quote Link to comment Share on other sites More sharing options...
Alaskan Posted March 6, 2016 Share Posted March 6, 2016 Welcome to the Single Nut Club (and I do not mean Lance Armstrong)! Can't wait to see the pics of your wheelset and the mounted rear brake. Very nice work! Quote Link to comment Share on other sites More sharing options...
VFRRR Posted March 19, 2016 Author Share Posted March 19, 2016 (edited) Some pictures of my new subframe project. Two 10 mm side frame parts water cut in aluminium. Rear end from a Honda RS125... I need to change the wiring loom and routing of it. The plan for are, that the battery will be moved up front or on side of the bike and front radiators mounted. Is there anybody who has experience with the NC30/35 radiators and fitment - will they be sufficient for this bike? I just need now to work out where to cut out some holes in the sides.... to lighting them more Edited March 19, 2016 by VFRRR 2 Quote Link to comment Share on other sites More sharing options...
RVFR Posted March 19, 2016 Share Posted March 19, 2016 Ooo, of course this come after.. Nice though,, if.....it'll be a next winter project.... Quote Link to comment Share on other sites More sharing options...
douglasthecook Posted March 19, 2016 Share Posted March 19, 2016 Very clever solution, I like it!!! Quote Link to comment Share on other sites More sharing options...
VFRRR Posted March 20, 2016 Author Share Posted March 20, 2016 thank you very much and yes it hat to come out now I still need to make up the compartment between the two sides, so the ECU and other electrical stuff can be inside there Quote Link to comment Share on other sites More sharing options...
VFRRR Posted May 14, 2016 Author Share Posted May 14, 2016 Hi, short update: it's been a while since my last post - we have moved houses, and it's first now that I am getting my workshop ready to work in. For now the rear axle is getting welded at a workshop near me and I am looking at getting the rear subframe ready for welding. I got a set of Honda VTR1000SP1 forks this week, know I need a set of triples for it. I will start on a new front fairing holder soon. Anybody have som experince with moving the radiators up front, instead of the orignal place on the side of the bike? any advice is appreciated:-) Quote Link to comment Share on other sites More sharing options...
VFRRR Posted June 2, 2016 Author Share Posted June 2, 2016 so the rear axle with the axle insert is ready and tried in the hub. At the same time the light weight rear brake are tried. I am thinking of taking rear master from a Honda CRF250, because there is a integrated reservoir and they are cheap. anybody tried that? Quote Link to comment Share on other sites More sharing options...
Veefer800Canuck Posted June 3, 2016 Share Posted June 3, 2016 I hope those 4 spot welds aren't going to be all that holds your axle together. I'm assuming it will get fully welded later, yes? 1 Quote Link to comment Share on other sites More sharing options...
VFRRR Posted June 5, 2016 Author Share Posted June 5, 2016 I am not sure, an engineer I know, who make steelconstruction will say it will hold the wheel and axle insert in place. It is also pressfitted into the axle. I have also torque the wheel at 280 Nm, as per the HRC manual for the RC45 rear wheel. So I will try and keep an eye on it and see. Quote Link to comment Share on other sites More sharing options...
Member Contributer Mohawk Posted June 6, 2016 Member Contributer Share Posted June 6, 2016 Where did you get that torque figure for the RC45 ? Thats a pretty big number @ 206lb/ft ! The left side of the axle is only 120lb/ft (162nm) & the right side of the standard through bolt single nut is 84-90lb/ft (122nm) Quote Link to comment Share on other sites More sharing options...
Member Contributer Mohawk Posted June 6, 2016 Member Contributer Share Posted June 6, 2016 PS re the CRF250 M/C they only have a 10mm piston, so will work with a single piston caliper, but probably NOT well with that opposed piston caliper. By the way what caliper is that ? Looks sweet :) Quote Link to comment Share on other sites More sharing options...
VFRRR Posted June 6, 2016 Author Share Posted June 6, 2016 last things first - I will try the master, because the caliper have small pistons, so I think the pressure it can deliver will be sufficient for that setup to work. the caliper is from ISR, Sweden, made for my setup. The torque data comes from the HRC RC45 manual for the HRC axle. See the pictures of the manual. and the torque is 202 lb-ft. Quote Link to comment Share on other sites More sharing options...
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