Totally absurd bike plans that you've thought about doing but will never do: FOREVER edition

re-rake a 26er fork to give my basketbike something like 72 HTA 70mm rake

get a brazing setup for the coop so we can make 650b low trail adventure frames tall bikes

build tubular wheels for the low trail road bike I’m putting together

turn shitty nashbar cx frame into 650x42b monster with porteur geo

This might be the wrong thread for this, as it might happen, but: messing around with front dereilleurs and dereilleur mounts so that I can get a bigger tire on my Saila. I’d thought that the fork was going to limit tire size, but nope, it’s the 6800 dereilleur and its 54982347mile throw, cramping things up on the back.

Braden told me that the 6600 [6700?] front dereilleur works with a 6800 lever, so with a mild compromise in front shifting quality, I can maybe shake loose a few more mm of clearance, and thus be able to start horsing around with fitting bigger and bigger tires on the bike.

My usual inclination is to just work with what I have, but a couple of initial rides on 28mm Hutchinson Sectors have me thinking that I’d like to try to see how big of a tubeless tire I can get into the frame / fork of this bike.

I want to get my grubby mitts on a 6700 FD since the cable pull will work better with my rival shakes.

I take back what I said about only consumables, kinda thinking if my tax return is sizable 650b’ing the steamroller.

that’d be interesting

Looking for a bit of tarck advice. Considering going from 700c @38mm to 26in @2.1’ on the front of commute bike. Presently have serious toe overlap, and high trail. Looks like i can get rid of toe overlap and reduce the wheelbarrow feels (looks like maybe 5/6mm trail reduction from low 60s so nowhere near problematically low).

Am one paycheck away from new front wheel plus powerblock combo. Clearances etc. will all work. WWTD? Does this sound genuinely stupid &/or genuinely pointless? Not stressed if only a little pointless, nerds going to nerd…

Unless Fred or someone knows why U Gonna Die from doing it, sounds like fun. Love me some powerblocks.

Real dithering talk: might replace the stock pads on the Spyres per tarck recommendation

You might replace them? Fuck just ride them for 3 months and you’ll have to

[quote=plutarck]Looking for a bit of tarck advice. Considering going from 700c @38mm to 26in @2.1’ on the front of commute bike. Presently have serious toe overlap, and high trail. Looks like i can get rid of toe overlap and reduce the wheelbarrow feels (looks like maybe 5/6mm trail reduction from low 60s so nowhere near problematically low).

Am one paycheck away from new front wheel plus powerblock combo. Clearances etc. will all work. WWTD? Does this sound genuinely stupid &/or genuinely pointless? Not stressed if only a little pointless, nerds going to nerd…[/quote]

Post mullet photos. Also maybe consider a low trail conversion fork.

[quote=eric_ssucks][quote=plutarck]Looking for a bit of tarck advice. Considering going from 700c @38mm to 26in @2.1’ on the front of commute bike. Presently have serious toe overlap, and high trail. Looks like i can get rid of toe overlap and reduce the wheelbarrow feels (looks like maybe 5/6mm trail reduction from low 60s so nowhere near problematically low).

Am one paycheck away from new front wheel plus powerblock combo. Clearances etc. will all work. WWTD? Does this sound genuinely stupid &/or genuinely pointless? Not stressed if only a little pointless, nerds going to nerd…[/quote]

Post mullet photos. Also maybe consider a low trail conversion fork.[/quote]

Are you getting the trail reduction from just the reduced wheel diameter, or accounting for steepening head angle also? you should be decreasing wheel radius something like 2cm, which I think will change head angle appreciably.

Is your saddle close to the end of its rearward adjustment? If so, steepening the angles may cramp your fit. The other constraint is bb. I think the bb will usually drop by something like 40% of the amount you drop the headtube.

I got my commuter MTB to ~55-60mm trail / 72.5-73 HTA by running a fork with shorter ATC, in hopes of nice front-loaded handling. I solve the saddle setback issue with a ridiculous bmx post + shim. I’m sure it’s better than the alternative (slack, high trail), but it’s still sort of meh. The problem is partly that my basket placement doesn’t keep the load close enough to the head tube; mid-high trail bikes are less bad with tight load placement I think.

My plan now is to re-rake a fork with the right ATC to get 72 HTA + 35mm trail

tl;dr: dropping front end is fine if HTA + STA + bb height all work out; but if you want low trail you may not be satisfied with a small reduction.

[quote=eric_ssucks][quote=plutarck]Looking for a bit of tarck advice. Considering going from 700c @38mm to 26in @2.1’ on the front of commute bike. Presently have serious toe overlap, and high trail. Looks like i can get rid of toe overlap and reduce the wheelbarrow feels (looks like maybe 5/6mm trail reduction from low 60s so nowhere near problematically low).

Am one paycheck away from new front wheel plus powerblock combo. Clearances etc. will all work. WWTD? Does this sound genuinely stupid &/or genuinely pointless? Not stressed if only a little pointless, nerds going to nerd…[/quote]

Post mullet photos. Also maybe consider a low trail conversion fork.[/quote]

To clarify a bit, if you want mid-trail and you can work out HTA, STA, bb, I think wheel swapping is a swell idea. If you want actual low trail, this ^ suggestion will reduce toe overlap about as much as 26x2.1 (20mm extra rake vs. 20mm smaller radius) and give you low trail (if ATC is appropriate).

.

whoops just bought this

Thanks^ @ balloon, yes wasn’t factoring in impacts from hta changes, was a pain to try and calculate the impact so I just left that as a fixed figure. Expect that the actual change will be greater.

Appreciate thoughts re saddle movement, wasn’t considering the implications for the contact points. I think I might have to adopt a test and see approach for that and bb height.

Am realistic as to trail reduction, main goal is to kill the toe overlap and if that takes things into mid trail land then I’ll be happy. Fork swap would be ace and clearly a more sensible way to dither but a new wheel is significantly fewer $$ and less pain to source.

Are you prison island? North America can get Soma crap.

Well, convinced myself I needed it, so Sugino ox601d is on order for the Vaya. Time to start prepping parts and frames for a fire sale to afford this mess.

Yep, prison island. Also is a disc setup so the soma low trail would be out afaik. Plan is to get a used 26 inch wheel from a small-wheel dead ender so hopefully not too spendy an experiment.

[quote=lukasz]whoops just bought this

[/quote]
you gonna de-knobbinate something?

yes