Rob Stone
Full member
- Location
- Ashbourne Derbyshire UK
markQLD said:
Think this is is one of the steel tubular ones that Rogers on about..nice bitta kit..
swing-arm - options ?
- Thread starter markQLD
- Start date
Think this is is one of the steel tubular ones that Rogers on about..nice bitta kit..
G
Grant
Guest
Is Roger still making them?
Rob Stone
Full member
- Location
- Ashbourne Derbyshire UK
Quite sure he's not, bought this one from Kev B off eBay couple of gears ago.
padlock
Hero member
- Location
- bedford Uk
http://www.flickr.com/photos/56669590@N02/6831107047/#
http://www.flickr.com/photos/56669590@N02/6831103093/#
not the best shots but gives you an idea
http://www.flickr.com/photos/56669590@N02/6831103093/#
not the best shots but gives you an idea
padlock
Hero member
- Location
- bedford Uk
Poffer said:
It came from Keith and he thinks it may have been made by Saxon racing. it can accommodate a 140 tyre
Marmite
Hero member
Hmm....dunno? The one I have on the Jota was said to be a Winterburn swinging arm. Not too bothered where it came from, as the bike seems to handle really well.
Bought another one yesterday for the 3C and that has a sticker saying Windy Corner - looks the same as the Jota one, but hard to tell, as the Jota swinger has a bike wrapped around it
Can take pics, but not tonight, as I seem to have buggered my neck (bloody house renovations
).
Pete
Bought another one yesterday for the 3C and that has a sticker saying Windy Corner - looks the same as the Jota one, but hard to tell, as the Jota swinger has a bike wrapped around it
Can take pics, but not tonight, as I seem to have buggered my neck (bloody house renovations
).Pete
Simonr501
Hero member
- Location
- Lympne, Kent. UK
Poffer said:
I usually use my finger!!!!!!!!!!!!!!
markQLD
Hero member
- Location
- QLD Australia
ok,, just how many do ya want ??Grant said:
i should know soon enough. i've made that enquiry, and Roger has offered to talk with whoever (?) and let us know.
one step at a time for now. but stay tuned.
Marmite
Hero member
OK...stung into action by Simon's comment that I don't need my neck to take a photo :
Here is the swinging arm I bought Friday. As far as I can see, it's the same as the one on my Jota. Pretty similar to Rob Stone's, but not the same. Tried to get the angle the same as Rob's and even found a bin for a stand that almost matched too
It is due to go on my 3C, but if needed by Roger for a pattern, more than happy to oblige.
Cheers
Pete
Here is the swinging arm I bought Friday. As far as I can see, it's the same as the one on my Jota. Pretty similar to Rob Stone's, but not the same. Tried to get the angle the same as Rob's and even found a bin for a stand that almost matched too
It is due to go on my 3C, but if needed by Roger for a pattern, more than happy to oblige.
Cheers
Pete
breganzane
Hero member
- Location
- NSW Australia
It's noticeable that they kink the left hand main arm inwards and have the gussets of both arms on the left side. It's probably for production purposes, so that both arms distort the same way when welded and the whole thing stays more or less the same width. The Spondon ally swinger that started this thread is the same.
Unfortunately, what it means is that the left side arm restricts your tyre width - not a problem in the 80's when a 140 was about as big as you could get, but these days pretty limiting. If a new batch of arms is to be made, it's probably a good idea to ensure they can fit at least a 160 tyre.
Cheers
SteveB
HTH
Unfortunately, what it means is that the left side arm restricts your tyre width - not a problem in the 80's when a 140 was about as big as you could get, but these days pretty limiting. If a new batch of arms is to be made, it's probably a good idea to ensure they can fit at least a 160 tyre.
Cheers
SteveB
HTH
Marmite
Hero member
Steve,
You're right about the gussets, they are both made on the same side. For those that are interested, The whole construction is a little weird to look at, but it ends up contacting in the right places. Clever piece of construction. Started to key the paint for respray and noticed it is bronze welded too. No idea what the tubing is: the cross tube is pretty solid like the original, but the rest of the tubes have quite a light ring to them (lighter material?).
Good point about tyre size for those track gods out there. My days on the track are limited to fun days only... Should be fine on the 3C though, with it's skinny little 110 or 120
Reason for putting one of these swingers on the 3C was quite simple - have one on the Jota and it handles really nicely....much better than my old '77 Jota. So I figured it could be a decent mod for the (already good handling) 3C.
No science, no measurements, just a gut feeling. Reckon it's lighter than the factory swinger too and anything that can help the heavy unsprung weight of the 3C rear wheel has got to be a good thing.
Pete
You're right about the gussets, they are both made on the same side. For those that are interested, The whole construction is a little weird to look at, but it ends up contacting in the right places. Clever piece of construction. Started to key the paint for respray and noticed it is bronze welded too. No idea what the tubing is: the cross tube is pretty solid like the original, but the rest of the tubes have quite a light ring to them (lighter material?).
Good point about tyre size for those track gods out there. My days on the track are limited to fun days only... Should be fine on the 3C though, with it's skinny little 110 or 120
Reason for putting one of these swingers on the 3C was quite simple - have one on the Jota and it handles really nicely....much better than my old '77 Jota. So I figured it could be a decent mod for the (already good handling) 3C.
No science, no measurements, just a gut feeling. Reckon it's lighter than the factory swinger too and anything that can help the heavy unsprung weight of the 3C rear wheel has got to be a good thing.
Pete
Pete,are you still running a drum rear brake.Lots of add ons required if you are.Brake light,brake rod or bar,cable attachment.Enough clearance from the peg mounts and muffler mounts to clear the brake cable and links.Its a busy area in down there.Better to get this working before painting it.Bit of egg sucking for me as you probably know this.
Marmite
Hero member
Vince said:
Vince,
Really good advice....much appreciated. Before I bought it, I took some measurements off the one on the Jota. Both triples have rear sets, so the rear sets on the 3C makes the fitting easier. Everything seems to be covered,except the brake torque arm. May fit as is, may not. If not, I don't think it will be a big deal......but you never know
. One of the nice things about the design is that it's not a lot different from the standard swinger.
Pete
Well then get to it,I am keen to see it.I would have to do some landscaping for me to go there.With my nose down arse up set up I scrap the big bore collector now going over my driveway exit sitting,have to walk it over.Do you think there will be a reduction in ground clearance,not so much on leaning as crossing if you get my drift?It is a sweet looking jigger
Marmite
Hero member
Ground clearance on the Jota, with the same swinger fitted, seems identical to standard. Don't think there would be any clearance issues over a standard triple.
It will be a while before the 3C hits the road again, as it's having a major overhaul. Engine is out of the frame now. Frame needs surgery (stand mounts need sorting and also needs seat tangs welding back on, as a DPO cut them off
). New brakes calipers will need to be time-serted to fit the Cerianis and motor is being stripped, checked and rebored. Rewire is in the plan too (loom bought). Chief problem is cash (isn't it always). I have enough for half the work and spare crank if bottom end is tits up, but paint and welding is unfunded at present
Expect is will be as big a job as Grant's Jota build, but with less space and parts
If you want photos, give me a shout, as I can take some of the Jota, which has the same swinger. Not easy to photograph, mind, as it's seriously buried in a whole mess of bike rear end.....
Cheers
Pete
It will be a while before the 3C hits the road again, as it's having a major overhaul. Engine is out of the frame now. Frame needs surgery (stand mounts need sorting and also needs seat tangs welding back on, as a DPO cut them off
). New brakes calipers will need to be time-serted to fit the Cerianis and motor is being stripped, checked and rebored. Rewire is in the plan too (loom bought). Chief problem is cash (isn't it always). I have enough for half the work and spare crank if bottom end is tits up, but paint and welding is unfunded at present Expect is will be as big a job as Grant's Jota build, but with less space and parts
If you want photos, give me a shout, as I can take some of the Jota, which has the same swinger. Not easy to photograph, mind, as it's seriously buried in a whole mess of bike rear end.....
Cheers
Pete
markQLD
Hero member
- Location
- QLD Australia
breganzane said:
well matey boy,, the left is not the issue ya reckon.
it's got a kink coz it has to run pretty straight back from the axle for a while, to fit the standard brake caliper arm.
then it has to kink back in to get back into the spindle. this actually gives the left side more room to the tyre, than the right side.
Clyde has a 140 tyre and there's about 12-13 mm clearance on the right, and heaps more on the left side.
,, & who da phark needs a bigger tyre ?? Miss J has rode around the outside of plenty of modern sports Jappa's on her puny 120 rear.
cheers
markQLD
Hero member
- Location
- QLD Australia
thanks Pete, i've forwarded your offer to Roger.Poffer said:
and i've asked Sean, at Metmachex, for some details of the 2013 swing-arm they are now making.
breganzane
Hero member
- Location
- NSW Australia
Roger that Mark. I based my comments on Tom's description of the Spondon ally arm he used to run on his 80 Jota (removed when it cracked at the brake stay). He said the left side limited it to a 140 tyre. Your experience appears to differ.
While I agree the 120 is fine, most people wanting an aftermarket swingarm are modifying their bikes, probably using different wheels etc, and if you're going to get something made then it should allow for modern sized tyres - whether they actually improve the bike or not. Most specials end up worse bikes than the original on which they're based anyhow.
Cheers
SteveB
While I agree the 120 is fine, most people wanting an aftermarket swingarm are modifying their bikes, probably using different wheels etc, and if you're going to get something made then it should allow for modern sized tyres - whether they actually improve the bike or not. Most specials end up worse bikes than the original on which they're based anyhow.
Cheers
SteveB