T And T Garage wrote on 01/18/17 at 16:22:07:


Hi.

I'd like to tip you on a good workable option for your "one pedal works both brakes"

Moto Guzzi made the V35 V50 V65 V75 "small-medium block" bikes from the mid-'70s all the way to the early 2000's with their world famous "Integral braking system":
- front brake lever activates front right caliper,
- foot pedal activates rear caliper AND fronty left caliper.
This happend through one rear hydraulic foot-pump and one brake compensator (ripartitore di frenata)

While I do realize that finding a semi-vintage Guzzi brake pump may be rarer than hens' teeth,
you should be able to find whatever you need on British or European eBay.

http://www.ebay.it/itm/POMPA-FRENO-POSTERIORE-BREMBO-MOTO-GUZZI-V35-IMOLA-350...
http://www.ebay.it/itm/RIPARTITORE-DI-FRENATA-MOTO-GUZZI-850-T5-LEMANS-1000-G...

The brake pump is already calibrated at 60/40 but can be "tailored", i.e. 70/30 or close to that...

You will naturally want to use the original brake lever (pedal)

http://www.ebay.it/itm/LEVA-PEDALE-FRENO-POST-MOTO-GUZZI-850-T5-1000-SP-LEMAN...

You will find the same brake pump off an older big-block Goose (850-1000-1100cc) while the 1200cc 1400cc versions might prove a bit too powerful for your lightweight hardtail.

... ...

Of course, you could save a whole lot of money by fitting a universal brake proportioning valve...



http://www.ebay.it/itm/RIPARTITORE-DI-FRENATA-UNIVERSALE-adjustable-brake-pro...

...but it wouldn't be an OEM, old stock, semi-vintage BREMBO of racing heritage, would it ?

Wow - Time flies.  I can't believe I haven't posted any progress on our "bobber" in over a year!

Sadly, not too much to report.  Since my last update, we've done several "turn-and-burns" to keep the coffers filled and we've gut rehabbed the garage.


However, we're back in work mode and did a proof of concept on the brakes - it worked great!

We found our bars, headlight and foot-pegs at a swap and we think they'll work out well.  We bought our carb and new flange.  And last but not least, we finally decided on a seat mount design.

Here are a few pics:







Running our brake lines through the frame.



Our conduit for the front brakes and wiring.



Seat design - KISS - keep it simple, stupid.  FYI, the tank is not quite into position.




Next up - handlebar controls.  We're going to do an internal throttle and clutch.  A la - no levers....

This ought to be interesting.

sandmanred wrote on 05/11/18 at 03:28:19:



Thanks!

ohiomoto wrote on 05/11/18 at 06:39:06:




Point well taken Ohio - great minds think alike!  We're using the spacers for the time being for placement.  Once we're set, the guy who modified our rear hub was goint weld new custom machined ones in place (we need a thicker wall/larger OD).  But I like your idea of a ring.... we'll look into that.

I'll post the progress.

Thanks again!

Myself I think I might go with the proportioning valve ,for it allows you to adjust the balance. It's hard to tell from your pics ,is that rear disc larger and is the caliper stronger than the front? If the valve was mounted with in reach you could adjust it on the fly , that might be good if say you were caught is heavy rain and you didn't want the rear locking up.It being small,  simple,  and reliable speaks well for it use.

Exhaust possibility...  (nope, it wont be that long   ) .    Very preliminary

So, it's been quite a while since we've posted.

We've gone through quite a bit, but we're nearing the end

Here are some updated pics:




Frame back from paint



Top-end rebuild and new clutch



Powder coating spokes



First time lacing wheels - quite "fun"...



Then there's the truing - also... "fun"



Easiest way to put the engine in?  On its side!




Starting to come together




Reverse clutch lever