Vee Two HRC-copy gearboxes - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 18 (permalink) Old 04-26-2016, 09:43 AM Thread Starter
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Vee Two HRC-copy gearboxes

Hello there,

My name is Andrew Cathcart, and I am the General Manager for a company called Vee Two in Australia.

Vee Two were commissioned by a European Team racing a pair of HRC RC51's in one of the European National Superbike Championships to manufacture 10 sets of HRC gearboxes and some camshafts with slightly different duration and overlap - to the team owner's race engineer's design.

The transmission components that we delivered (reverse engineered from the HRC units that Vee Two was provided by the team) worked brilliantly, and it was decided that we would make additional batches. This final batch of 20 was uncompleted when Brook left the company to retire in 2005.

Now that Brook has come back out of retirement, and the two of us have bought Vee Two back to specialise in Ducati race engines and restoration, we are going to finish off this last batch along with the range of Ducati race transmissions that we are manufacturing for our customers.

The file shows me that according to the HRC catalogue that was provided with the sample HRC transmission set (presented in the blue velvet lined storage box), all gears are accounted for aside from the 16 tooth Mainshaft and corresponding 33 tooth 1st gear.

Every other gear apart from 5th (which has only one option - 26T on the mainshaft, 30T on the counter), every other gear has two options, giving a very versatile range of gearing.

I've attached some photos of a single set of parts as they are right now. We have manufactured them out of EN39B Case Hardening Steel, and if there is enough interest we intend to finish the final process of heat treatment along with the next batch of our close-ratio Ducati gearboxes.
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post #2 of 18 (permalink) Old 04-26-2016, 09:51 AM Thread Starter
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Just realised that I have to wait a while before I can post photos due to my new membership...
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post #3 of 18 (permalink) Old 04-26-2016, 10:06 AM
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How will they compare price wise to a set from Nova transmission in the UK?
Waldo and ezno like this.
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post #4 of 18 (permalink) Old 04-26-2016, 10:12 AM
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Keep posting in this thread a few more times (10 min I believe) so you get some pics up...

'06 Black/Metallic Gray RC51
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post #5 of 18 (permalink) Old 04-26-2016, 09:02 PM Thread Starter
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Ahhh, I see. I'll post away!
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post #6 of 18 (permalink) Old 04-26-2016, 09:52 PM Thread Starter
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Right, here are the aforementioned photos of the parts that we have available.

I've arranged the gears out in order from left to right. You can see the option ratios for each gear.



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post #7 of 18 (permalink) Old 04-26-2016, 09:55 PM Thread Starter
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And here are the ratios and speeds with final drive setting all taken from the HRC manual that we have here:

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post #8 of 18 (permalink) Old 04-26-2016, 10:47 PM Thread Starter
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post #9 of 18 (permalink) Old 04-26-2016, 11:19 PM
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Garage
Just curious do you plan on doing or still have any of the cams?

2003 RC
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post #10 of 18 (permalink) Old 04-27-2016, 01:08 AM Thread Starter
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We're asking AU$3000 (around US$2300 or £1500) for everything that you see in the photo, and will be fully heat treated and finished ready for assembly.

For anyone that wants it, we can provide everything completed in isotropic superfinishing, an aerospace process that prolongs gear life and aids in oil shedding – reducing parasitic loss in the transmission. This is something that we offer on our own race parts that we manufacture, so could have done by our supplier for AU$350 (around US$260 or £180)

This kit has two gear options for each gear apart from 1st and 5th, and no overdrive option on 6th, something you don’t generally want on a racing transmission.

As with other options available on the market, the Vee Two kit comprises of all of the individual gears, along with the mainshaft. The countershaft and bearings/bushes etc are all stock streetbike parts either bought from a dealer, or taken from the gearbox that you’re replacing (so long as they’re within serviceable tolerances)
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