Great build, was thinking myself my tall bike would be nicer with fat tires and here it is. Agree with Frida, some more info on why you did the multi-bb solution would be interesting. Maybe a part earlier in the video where you kind of explain your vision (as it was originally) and then as you build you can walk us through how it changed due to constraints discovered during the build. My bike has the rear triangle of the top frame cut off, it's just dead weight. I think it could look cool to 'unfold' the chain/seat stays into one larger "seatstay" between the bottom triangle and the current spot. Thanks for sharing!
Thanks for watching! I decided to keep the chainstays for the possibility of storing a water bottle and other spare tools. While there is already one water bottle mount, it interferes with the chain, making it unusable. Additionally, I believe the chainstays could possibly provide a bit of extra structural support to the seat tube.
Interesting Build. I was waiting for the part where you explain the need for a third crankset. Can't you just route the chain form the top to the bottom crankset?
It would normally be possible/ideal to route the top bracket directly to the bottom bracket. However, if I did that, the chain would contact and interfere with the bottom frame. This normally wouldn't happen on most tall bike builds, but I used a fatbike with unusual geometry.
No no no!!! Get a real bottom bracket puller and change the bearings with sealed ones or repack the bracket. This is a stupid way to tear up your bike!!!!
Honestly? I would’ve just cut it flush, deburred it. Then I would make another seat post to the exact height I want permanently. Then use an internal pipe to connect the new seat post to the internal of the old seat post and welded it up. If I HAD to remove it: - cut the tube flush. Then grind down a sawzall metal blade to be thin enough to fit in the tube. Cut a slit as far down as possible with the sawzall, and use a chisel and hammer carefully to collapse the internal tube, then remove it.
Plumber's trick: cut the tube close to the frame, sawzall two shallow slits in the tube, beat out the slither of metal on between the two slits removing a section of the tube, and this gives you room to beat the tube into a narrower diameter.
I'm *probably* wondering why this man's reaction to firing 500 paintballs at his garage ceiling under insane pressure in a 3" grouping is that of shock and awe...
A buddy of mine built one but not for tires, he took the 120 gallon tank from his old shop compressor and mounted it on a trailer, then put a valve and an interchangeable length of 2" heavy duty hose kr a long pipe on one end. He uses it to evict groundhogs on his farm and to launch things into his neighbors pool like a mortar launcher. He even put an air solenoid on the valve to release it faster via a button. At 220 psi, the max his new compressor will go, it'll disintegrate a beer bottle on launch, or send a solid rubber ball about 1/4 mile down the road, or open up a whole network of ground hog burrows in one shot. I don't think the neighbors are too fond of it but he's 80 and half nuts so they're careful what they say because it only makes him more determined.
