A G50 Premier

After an outing on stunning Minnovation Racing Works Seeley G50 at Cadwell Park, a deal was struck for NYC Norton to provide complete Seeley G50 racing bikes here in the states. Minnovation and NYC Norton immediately began collaborating, building up the sister bike to the Minnovation Works G50 to showcase and campaign here in the US.   The bike was completed and track-ready by early September, 2012, in time for AHRMA/Barber festival, and a shakedown run at Summit Point beforehand.  Weighing in at under 240lbs it is an incredibly tidy package with an phenomenal power-to-weight ratio   Minnovation short-stroke G50 motor.  NRP stainless exhaust.   Absolutely top spec for the 500 Premier class.   The detail work is second to none.  Replica Fontana 210mm Front Brake.  Cosentino Internals in Roadholder forks   Replica Fontana 180mm magnesium rear brake with cush-drive sprockets   We may be biased, but this is our pick [...]

2012-11-25T14:20:42+00:00September 20th, 2012|builds, nycNorton, racing, suppliers|

Breathe Deep

Today was a good day.  We had master fabricator and bicycle craftsman Seth Rosko of Rosko Cycle Company come to the shop and mock up an exhaust system for the Seeley NRE.  Dave Nourish is very specific with his lengths and diameters, and to keep the tuned lengths out of the way of the rider, each side will be tucked behind the frame rails, which will require some scalloping of corners of the beautiful oil tank.  Seth is the man for the job, and after an hour of cutting and fitting of pipes he had a good mockup in place, meeting all the necessary dimensions.  Look at that megga! It can be said here, with great certainty, that this bike is going to roar.  Lock up your daughters and batten the hatches. See all posts on this build by clicking here: https://nycnorton.com//tag/nre/  

2012-04-25T23:00:25+00:00April 25th, 2012|builds, nycNorton, racing|

Clearances

The NRE 750 motor has some unusual spacing dimensions, so careful alignment is in order.  Shims and custom spacers are used to get everything in its proper place.  It all starts with getting the motor and gearbox aligned in the chassis.  Then, the clutch must align with the crank pulley.  Spacer there, moving it outboard a bit for true belt run.  Then onto gearbox-to-rear sprocket alignment.   A very handy laser alignment tool aids in locating the rear hub to its proper place for a perfect chain-run to the countershaft sprocket.  Easy and accurate, but after all this, chain-to-tire clearance can be an issue, especially when running 130mm-width tires.   We had the clearance necessary without much ado.  If not, the next solution would have been to move the countershaft sprocket outboard, or perhaps an even more radical solution; moving the drive-side engine plate outboard by spacing between the motor [...]

2012-04-11T15:55:10+00:00March 3rd, 2012|builds, nycNorton, racing|

NRE in the house

Looking good, feeling good.  We had to work to make it happen, but the Magyar NRE 750 was shoveled in to fit to its Seeley MKII frame.  A little-known factoid about these motors: The case mounting-bolt bosses are different widths and require appropriate shimming.  No two of them are exactly the same dimensions, so a lot of attention was put into the plates to get it all into the Seeley and keep it perfectly lined up.  This, and the ribbed oil galley under the timing cover was certain to foul the lower frame tube without careful placement.  Happy to report about .100" clearance without much ado.  The front plates are next.  Much, much, so ever so much more to come on this one. See all posts on this build by clicking here: https://nycnorton.com//tag/nre/  

2012-04-11T15:56:28+00:00February 22nd, 2012|builds, nycNorton, racing|