31.5" Cruiser to BMX

[todwil]

Ok a couple months ago I ordered a 32" cruiser from Wally World and had it shipped to
my house. I put it together and rode it a few times and then it under the sawsall!!


Shiney new untouched


Cutup and shortened chain stays and raised seat tube angle


Relaced wheels with sealed bearig hubs with freewheel!!!


Carbon fork 445mm clears the tire good!!


Welded seat stay looks better than my steal welding!!

[ThundaCrymz]

nice! I didn't know they had 31.5" bikes. can't wait to see your final result of the revamp.

edit: also what kind of bikes are those behind the genny ? Looks like 36" inchers

[NEPMTBA]

+1 repped...
...looks like your on to something really "BIG"

[todwil]

nice! I didn't know they had 31.5" bikes. can't wait to see your final result of the revamp.

edit: also what kind of bikes are those behind the genny ? Looks like 36" inchers

Thanx Ya the tires say 32 but the tape says 31.5ish! The other bikes are 36ers
They are a lot of fun to ride!

[jay_ntwr]

Wait until the Trunk Boiz hear about this!

[GTscoob]

Subbed because I'm curious what will come of this project.

My 29er feels awkward as hell on a bmx track compared to my 26" dirt jumper. Cant imagine a larger wheel will feel better.

[todwil]

Here acouple more pics sorry it took so long but I was procrastinating on how to raise the HT angle from 66* to 70* so I finally decided on the JD2 trick and it did OK!!

[adarn]

Looks like it's going to be goofy bike! And that's a good thing IMO.
I always like watching your threads, Todwil, thanks.

[wschruba]

So....out of curiosity, where did you get 36" hoops and tires?

[todwil]

So....out of curiosity, where did you get 36" hoops and tires?

Unicycle.com for rims and spokes, Waltworks for the new mountain bike tire

[todwil]

Well after I put frame in the JD2 bender to steepen the HT angle I made the new top tube fit and tack it in!!

[ThundaCrymz]

Awesome, great progress there !!!

[TrailMaker]

Hey;

Frankly, I'm not seeing how these mods were accomplished. Chainstays shortened, ST or HT angle. It's not fair to do such things and offer no insights. I assume this is 7005 aluminum, so where did you source your new TT?

Inquiring and curious minds want to know these things. Details man, DETAILS!

[todwil]

Hey;

Frankly, I'm not seeing how these mods were accomplished. Chainstays shortened, ST or HT angle. It's not fair to do such things and offer no insights. I assume this is 7005 aluminum, so where did you source your new TT?

Inquiring and curious minds want to know these things. Details man, DETAILS!

Trail

I thought that's the idea...to do the mods and make it look original....ish

I cut the chain stays at the bottom bracket and the seat stays at the seat tube. I shortened the Cs 1.750" and sanded about .250" off getting it square and flush.
The ST was cut off at the BB as well and shortened and raised to about 70* it was
Shortened till it met the SS ST previous welded intersection sanded to fit together again
Then welded.
I didn't want to to cut the HT off so I thought about mitering a notch then pulling it closed and welding but I was worried it wouldn't look right so the next idea was to bend the DT
4* but it needed to close to HT to look OK the closest it would get is about 7" but it did the trick now there is just a little dimple from this so I think a piece of tubing gusset to cover it
up.

[BATRG3]

Since you're the one to work most closely with this bike, I figured you might be able to answer this question:
What kind of tire does this frame appear able to clear? For example, could it fit a 29x3 Knard (by Surly) on a ~35mm rim?

Thinking this might be a donor for a "poor man's Krampus".

[Rantz]

Interesting idea would like to see it in a finished state

[bikeabuser]

I can't believe I just went to Wally World's website to have a look ... Love your bar choice.

[cantrebolls]

Subbed because I'm curious what will come of this project.

[todwil]

Well Ive been a little lazy lately and havent worked on this the top tube is mostly welded
in but I need to make the headtube gussets.