(ORBO) BACK40 by LTJ, design by OJ. (ROLLING! But withdrawing from the build-off.)

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Nice. :nerd:
Second shift heading into the night shift, getting it done in the cooler air.
Hope you get this one done in time brother,
but if not you know it's worth getting it done right.
(as you always do) ;)

Carl.
Just hiding in bushes watching.....looking good!!
Thanks Guys! Build is now on hold for a while, I didn't manage to get it rolling before running out of time, hopefully I can get back to it in time. :thumbsup:

Luke.
 
It's been two weeks since your last post. I'm a little concerned. You don't normally go this long without posting somewhere on the forum. I hope everything's alright!
Jim
Hey everyone, we are doing fine, just having some time off. Thanks for checking in on us!

Will be back on this build with about 2 or 3 days left in the build-off, it will have to be a sprint to the finish, it should be fine, I have a new tank of gas and a spare roll of wire ready to go if needed, and all the parts are sitting, waiting to go together, so provided my geometry works as intended, it should be cool! :thumbsup:

Luke.
 
A good day working today!

Started with the rear sliding drops, drilled the holes:

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Tapped the 8mm threads:

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Slotted the axle hole:

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Test fitted and then did the final sand and shape:

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Then I moved on to the fork drops, basically just sat the wheel under the fork with different sizes of steel as a spacer until I got the middle bar level, then it was just a matter of trimming the legs to the correct length and tacking on the BMX dropouts:

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Not much clearance between the brake disc and the fork leg!:

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Then I moved on to the seat tube, marked it to the correct length:

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Cut, drill and slot:

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Found a clamp on an old alloy full suspension bike that was the right size, I will end up removing the quick release and just having a nice grade 8 bolt through the clamp, seat post is the same size as a Mongoose beast as it turns out, fitted in nicely with just a quick ream and file on the tube seam:

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That was it for the day aside from getting the first ever rolling shots of BACK40!

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Front porch pose shot:

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I also then added the parts that will match the yellow spoke covers:

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All up a pretty good day, but I think I will withdraw from the build-off.

There is one day left before final photos must be up and I have not done any planning on the frame gussets or calliper mounts. I could just make something up, but I know they will be so much better with a couple of days worth of planning invested in them first.

I had a sit on the bike today after all these months of planning, and it really is an awesome fit for me, it also feels very nimble and brutish at the same time.

It is an even better bike than I could have imagined, I don't want to rush the last little pieces...

Luke.
 

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