View Full Version : Adding USS to a streetfox

01-12-2014, 09:24 PM
Well Folks

Having nailed my colours to the mast as Frank said In another USS V DKS thread, I finally converted my original Green Street Fox to USS with a retro fit unit I designed to fit without damaging the paintwork . Now all three trikes have USS fitted . For the past 5 months this trike has been sitting in the conservatory on an axle stand being used as a stationary trainer .
The USS conversion is basically a shortened fork tube as per the AZ DIY Tutorials fitted with the handlebar clamp from a goose neck and a flat mounting plate , a pair of mountain bike handlebars , two spherical rod ends and a piece of tubing with threaded ends as a connecting rod , and an angled bracket that fits onto the front wheel lug . This was welded to the lug for added security. Nylocs or Locknuts were added where needed and washers to stop the rod ends fouling on the arms .
The USS handlebar assembly was bolted to the underside of the main boom using 2, 8mm bolts with a pair of anti-crush tubes( 10mm OD tube with 1mm walls ) this was fitted from the top to stop the main boom from crushing when tightened .
I found the handlebars to be more comfortable fitted angled forwards rather than the mountain bikes standard fitment where the bars slope backwards .
The angle of the connecting rod arms were calculated by drawing a line between the bottom of the fork tube and the centre of the uss mount . The arms are then welded at a right angle to that line and the hole for the pushrod are drilled at the same measurement from the centre of the tubes . On the wheel mount I found it easier to use an odd shaped right angle bracket as it allows the wheel nut to be easily accessible . This method gives equal left and right movent without any differential effect. Prior to final fitment the whole modification was given a coat of Satin matt black paint to match the black of the original black paintwork of the trike
The pushrod can be affixed to either front wheel with the method being mirrored to suit , On this trike I found it easier to connect this to the left hand wheel as the arm passed under the front chain pulley without fouling .
They say a photo is worth a thousand words so here are the photos :-
The parts , The measurements , Underneath , The finished assembly .
http://s11.postimg.org/e4f4iu59v/bitsuss.jpg (http://postimg.org/image/9vaego20f/full/)

http://s11.postimg.org/wipnmthkj/square_lines.jpg (http://postimg.org/image/5kvql2wxb/full/)

http://s11.postimg.org/6r4bxmalv/under.jpg (http://postimg.org/image/p6osv0oq7/full/)

http://s11.postimg.org/9wkca33ub/finished.jpg (http://postimg.org/image/a9bqg9m3z/full/)

Once fitted all that was left was to shorten the brake and gear cables and refit the cable tidies .

01-13-2014, 02:47 AM
....nicely done, looks easy enough to implement this mod, and not damage the paintwork.....

01-13-2014, 03:01 AM

Nice work as usual.

i ride a Hase Kettwiesel where the bars actually come up from the horizontal and slope forward :-


I find this very comfortable , if you wanted to try this on your set up you could use some straight bar ends which will clamp to your existing bars ?

01-13-2014, 04:37 AM
Thanks Guys

I have North Road bars on both the other trikes and thought this would make a change ,

We all know the setup ............. NOTHING IS WRITTEN IN STONE ............... :builder2:

have angle grinder will travel :jester:.

This little thread was put up to help the novice do a conversion to USS after they built their trike and painted it, without destroying the paintwork .:taz:..:):)

regards all emma

01-14-2014, 09:11 AM
Here are the finished Photos

A chopped down gooseneck makes a good stump for a mirror

http://s17.postimg.org/lxzseswzj/frontuss.jpg (http://postimg.org/image/4xgw64jy3/full/)

http://s17.postimg.org/9ogro5csf/sideuss.jpg (http://postimg.org/image/reig96qd7/full/)

streetfox with USS (http://postimage.org/)

01-14-2014, 09:38 AM
Hi Emma,
Nice work there. Looks good.

How do the front brakes work? Looks exactly then same as the rear of my delta tandem, and I speed up when I use the brakes! Its a single lever to a one into two cable splitter, to each rear brake. Cannot pull hard enough to even slow down. Any hints ? Like wrong levers, wrongs pads, wrong user ????
Steve G

01-14-2014, 09:48 AM
Check your Email Steve , in a couple of hours
regards Emma

01-14-2014, 06:31 PM
Lovely conversion job and well explained to boot!

Thanks for sharing Emma. :-)