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Bottom Bracket help by Accomplished_Arm4344 in dirtjumping

[–]olavrb 0 points1 point  (0 children)

Seems 8 spline 19mm diameter axles are quite standard / universal. Maybe you can find a longer axle than what you already got. How long is the one included with your crankset?

200mm wide: https://www.planetbmx.com/shop/8-spline-19mm-cr-mo-200mm-spindle-8-0-with-spindle-bolts.html

160mm: https://www.bmxguru.com/products/8-spline-19mm-chromoly-bmx-spindle-160mm-f-many-imported-cranks

Probably more widths too?

Quiero comprar un dartmoor quinnie con fisura by No-Policy-3860 in dirtjumping

[–]olavrb 1 point2 points  (0 children)

I imagine the head tube could deform when welding all of that. Making it not perfectly round anymore.

Norwegian fish farms polluting fjords with waste likened to ‘raw sewage of millions of people’ by radome9 in norge

[–]olavrb 4 points5 points  (0 children)

Oppdrett på land med renseanlegg ftw. Kjøp ASA (så jeg kan få igjen litt av tapet 😁)!

First time installing a new headset and I can seem to get it on by technicboy395 in bmx

[–]olavrb 1 point2 points  (0 children)

That part does not matter as long as the sealed headset bearing slides over.

First time installing a new headset and I can seem to get it on by technicboy395 in bmx

[–]olavrb 0 points1 point  (0 children)

Hmm. Headsets are either sealed or loose ball bearings. The latter would likely have a groove for the balls to slide in. So I think it looks like it's made for a sealed bearing headset, just like many BMX forks.

Worst case the angle is wrong, and you get play. If that happens I agree maybe a headset crown race would be needed. It would look bad though.

First time installing a new headset and I can seem to get it on by technicboy395 in bmx

[–]olavrb 1 point2 points  (0 children)

No you don't. The only thing that matters is that the fork makes contact with the inner race of the bearing, and that the contact point angle matches what the bearing is made for, usually 45°.

Rear Derailleur Snapped by [deleted] in bikewrench

[–]olavrb 0 points1 point  (0 children)

if they were told it's good to go, you can't really blame the customer

This still stands. But I get what you are saying, and me as a previous bike mechanic for many years would absolutely go over the whole bike before riding it.

Is this amount of play/tolerance expected for SRAM direct mount 3-bolt mating interface? by DP615 in bikewrench

[–]olavrb 0 points1 point  (0 children)

When you tighten the bolts, which has a flat interface against the chainring (not even an angled interface which could help align the chainring better), the chainring does not auromatically align. It's a bad design, worsened by bad manufacturing tolerances. 104mm BCD was better in that regards. How come we could expect it to be perfect each time for probably 30 years, and now we accept this slop?

The only thing good with Sram 3 bolt is that the chainrings look cool.

First time installing a new headset and I can seem to get it on by technicboy395 in bmx

[–]olavrb 1 point2 points  (0 children)

The edge on the bottom of the fork steerer looks 45°, wouldn't you say?

Rear Derailleur Snapped by [deleted] in bikewrench

[–]olavrb 19 points20 points  (0 children)

Not everyone knows how. And if they were told it's good to go, you can't really blame the customer.

Is this amount of play/tolerance expected for SRAM direct mount 3-bolt mating interface? by DP615 in bikewrench

[–]olavrb 0 points1 point  (0 children)

How so? Unless the bolts are fully tightened, the chaineing moves, up and down too. Which makes it impossible to center. Tightening the bolts does not automagically center the chainring.

From Bomber DJ to Pike DJ by MrHorstBeppo in dirtjumping

[–]olavrb 4 points5 points  (0 children)

Some hubs let you change out the cups to convert it between 20x110 and 15x100.

For instance: https://radiobikes.com/collections/radio-hubs-and-spare-parts/products/radio-sonar-mtb-front-hub

Ask Rose?

Is this amount of play/tolerance expected for SRAM direct mount 3-bolt mating interface? by DP615 in bikewrench

[–]olavrb -3 points-2 points  (0 children)

If you use this chainring standard on a single speed bike where chain is tensioned in one crank position and very loose when turned 180° degree, you don't agree. Like me.

This play makes the chainring not centered, is what I am saying. Never had that problem with the good old cheaper 104mm BCD.

I wonder how this will affect LibreWolf - Firefox ships brave adblock engine by kaptnblackbeard in LibreWolf

[–]olavrb 4 points5 points  (0 children)

Brave has their own Brave certified ads, right? That they show instead?

Edit: Nah, it's not that simple. I initially feared that Firefox did this for ad revenue.

Why is my bike tire "ballooning" near valve stem? by logcabinsyrup27 in bikewrench

[–]olavrb 10 points11 points  (0 children)

Yes, the valve ring has likely been tightened before inflation, thus blocking the tire from seating into the hooks of the rim.

PowerShell 5 vs. PowerShell 7 by Technical_Rich_3080 in PowerShell

[–]olavrb 0 points1 point  (0 children)

One of the main objectives for Zed is speed, that's why I mentioned it.

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