unistrut bead breaker

[benny hedges]

needed a space saving tyre bead breaker after struggling yesterday so i made this.



bits -

200mm 41/41 unistrut bracket
2m 3/4 galv pipe
25mm pipe clamp
m1 wall plate
m12 rawlbolts
m10 studding, nuts, bolts, washers

i flattened the pipe a bit with my wammer so it'd fit in the unistrut, and drilled a 10mm hole in thend & rounded it off so it can move up & down - took up the slack either side with washers and 2 m10 nuts inside the pipe so it can't crush


fitted a pipe clip with a bolt at first, but the bolt popped a hole in the tyre lol - just as well it wasn't a new one or i'd be well pissed off!


mark2 - used a length of m10 studding with a m10 wall plate to spread the load against the tyre


bingo works spot on. thats my knee pad on the floor so it doesn't mark the rim on the floor - might put a bit of carpet under it after instead.


it makes the job easier by soaping the bead as soon as it pushes down.... then it breaks with no effort.


mark3 - i'll use a sliding collar over the 3/4 pipe with high tensile studding instead of the mild steel, which bends too easy. if i tap some grub screws in the collar i'll be able to adjust it to fit different height wheels.


just for practice i popped off the old tyres off my firestorm wheels..... result
win number 2 is i found my 2ft levers and rim protectors, but dont need them now if i use the cable tie method.
next job is to make a balancing frame with some 450mm unistrut brackets......

[benny hedges]

just had a look what bits ive got in the garage and decided to fit a 1" equal tee over the 3/4 pipe, with a grubscrew in the pipe to stop it slipping, and an 8" piece of 1" pipe looking down, with the cone end of a union at the bottom to push against the tyre.

if i cut the top thread long enough i'll be able to lock it in position by clamping the 1" pipe against the 3/4 pipe
i'll add a pic when ive done it.

was thinking.... if i put another bracket on the other side of the garage with a padlock through it i can chain my bike to it.

mushroom the rawlbolts and pivot over or put a blob of weld on them....and use a bit of prison technology so it can't be sawn through..... a length of 1/2" pipe inside the 3/4 pipe....
they use this on prison bars... if you try to saw through them, the bar on the inside rotates and snaps the blade.
sort of a dual purpose thing, seeing as i'll only use the bead breaker now & then.

[VTRDark]

No room for a fork lift in the garage then.

(:-})

[AMCQ46]

I use the blade from and old garden spade. It's got just the right curvature to sit against the wheel rim and I then have 2 lengths of 2*4 wood and a ratchet strap at the pivot end ( my favourite solution to almost every problem ) and then standon the free end and bobs your uncle