did you get that good morning i'm paul brodie and we are in my shop mitch and i
and there's a lot going on there's a lot new we have a new t-shirt design and that's basically
what it looks like i like it we all like it so we're going to talk about that finally
got the aramaki sharks in i ordered these in march so i'm a very a very uh
a patient fabricator waiting for these to come in they came in friday i believe we're going to talk
about shocks and spring rates and things like that and i got nickel plating back i got some
for the cub this is aramaki so this is this is the gas tank mount holds the brake cable
and this is the brake lever this is a really nice nice form of nickel plating it's called electrolus
nickel and it's about half a thou thickness so it doesn't hide it shows everything so
if you do something nice it shows and if you're not so nice that shows as well so
it's a good thing i did a nice weld there
so that's what's going on on the on the t-shirts they are on sale now in the in the
merch department and they're on sale that was mitch's idea from now till christmas they are
approximately five dollars off so this is a great time to stock up on t-shirts that'd be great if
you ordered some merch we're going to talk about sharks a little bit i have some other work shocks
we're going to look over here this is a race bike i built back in 2008 approximately so i ordered
these these are work sharks that i ordered these are all all black the ones i just got is silver so
it comes apart pretty easy so we're going to look at at the difference between these sharks
and those i know that it's a slightly different application but we can do things like weigh them
so this is the celsius shock because it's off the excelsior race bike
so we'll zero this and the weight of this shock is 13.56
that's 2008 that's basically 13 years ago i got that shock
this is 14 25. so this shock appears to weigh more but what we're going to do is we're going
to take off the springs and we're going to weigh them we're going to talk about springs
so this is the aramaki spring this is the new one and it's 5 29 shall we say
this one's only 375. now we talked about these springs yesterday and these
are comparable springs the spring rate is about the same but this one weighs basically five and a
half ounces less than this spring so of course i was asking about this spring here and then
i found a photo last night and it's a photo of the race bike that got got stolen in 2005
and you can see that the springs are much much lighter this one has ten coils this one has nine
and the one in the photo has seven coils and it's shorter too and it works just as fine so i need
to get some of those really light springs that's what i want to do so these shocks mount like so
and i think one of the reasons why it mounts like that let's go to the vise and i'm going
to show you something so this is the halfway bark of the shock see if i put that like that
can you see how this is the heavy side so that's why you want this to be up because
this is where the wheel is this is less unsprung weight and i think
it's also to do with the valving how the oil sits in the chambers here so
that's the way the shark runs now there's not a lot of room between here and and the swing arm
so what i want to show you is this on this shock here this is the ones i just got
see how large that is and on the excelsior shock can you see how much smaller it is because
this can fit closer to the swing arm so this is the part that fits on there and the spring fits
on top so i made this on the excelsior shark this is delrin so it's light it's lighter than
aluminum i don't think i made this i think that came from workshops so i need to get a couple
more of these and then i'm going to be making up some sort of a delrin spaces so that's coming up
so i'm glad we got to talk about shocks because we're going to mount the sharks
onto the bike today here's the shock mounts that have to go here
the this is what holds on on the top of the shark so how do you locate this
so i made up some pieces see that just slides into there and that slides into there
and now that's about the right spacing so that is going to go like that
and that is going to hold it see those grooves have you figured out what those grooves are for
yet i'm not going to tell you you'll see later on and then there's these pieces here these so i'm
going to tack the inside one on i found a washer yesterday so let's go over and do some tacking
so i got a washer the washer's gonna sit like that that rests on here and then i
i put a couple tacks there so it spaces that out just a little bit that's what i want to do
okay that's all tapped
do something like that so it's light and strong
got this in here so have you figured out what what these grooves are for yet i'm going to show you
right now if i didn't make those grooves i'd be cutting through a fairly heavy wall aluminum tube
look at that it all comes apart
just like it was designed to so all we're left with now is the two shark mounts
all tick-tacked in place and they're basically in line with each other that's important
i did a drawing for the aramaki frame back in 2001 and this is my drawing it was on cardboard and
it kind of got separated and i sent it to someone and they used it and they sent it back in a big
envelope so what i have to do here now you see how the bike is held up by a jack i need to set
the ride height so i'm going off the drawing can you see here that's where the swing arm
axle goes through and it's 15 and an 8 inches off the ground so that's what i did yesterday
i set this ride height at 15 and an eighth right there so i've got it at the right height
let's talk about the swing arm a little bit here here's the aramaki swing arm that got
made in the shop here about a year ago or more this is the shark mount i took this one off
you can see how that used to go there and this one has to come off we got new shark mounts
and i put a felt pin mark that's approximately where it goes but once the swing arm is on the
frame and the wheel is in it that's the height of the axle and then it it's wherever the shock
is going to fit so i made up a fixture here this is gonna get held in the mill
it gets mitered at seven degrees i have to choose the right size hole saw maybe a little bit of
filing and then those get get tig tacked on so the next step we're going to do is to cut this one off
i got the middle part of the shock mount that didn't get welded so i'm seeing if i can just
get that out of there then i got less filing
oh
that's a good fit
there we go
so i made up a couple of these these are exactly the same length as the shock
so what these are going to do is going to emulate where the shot goes
and then we can when the shark mount is in the center it can get tig tacked on
let's go see how it fits
this is how it all goes together
so you can see the red mark there that's where i thought the shark mount should go
so it's pretty close if you look here you can see can you see there's a gap there
there's a gap so i think i'll look for another hole so it's it's hard to know exactly i tried to
it's got a flat spot in the middle so it's really hard to know just what size
so i'm going to lathe now and i'm going to
countersunk here i can save a little bit of weight on the inside where nobody sees
gotta save a few grams gotta be
so
we're gonna take off the struts now put the shocks on and that's basically that
was the goal for today this is where we see if the shark hits the swing arm
there we go
yeah it's hitting it doesn't have any any any clearance so this all
this here all needs to be be made smaller and the and the spring moves up somewhat so anyway
it's uh it's on there we'll we'll just put the other side on there but
i need to do some work but we get to see what it looks like more or less
here we
go so it needs just it's got like an eighth of an inch to go in but
there's the sharks mounted just have to modify the bottoms a little bit if you're wondering what's
under the towel here look there's a motor maybe we'll look at that next time thank you very much
for hanging out with us mitch and i like coffee if you buy us coffees that helps to fuel our channel
so we'll see you next time thanks take care you