Tag Archives: BottomBracket

After weeks of waiting, I finally fix up bluebell #cycling

For this I needed a new crank puller (a.k.a. extractor, Park Tool CCP-22):20130511-105542.jpg
And a new crankset (unbranded):20130511-105612.jpg
The crankset was recommended as the current replacement by SJS. Replacing the chainrings with the single chainring I already had on the old crankset.
The crank puller seems OK, though I don’t rate it above my last one, maybe equal to it. Anyway it worked twice which is all I needed. Important is to always remember to grease both threads and the tip of it, since the tip will be grinding against metal.
Here’s one side done, baby started crying that was all I managed that evening:20130511-151649.jpg
It’s also worth noting that I grease the bottom bracket axle before putting the new crank on, grease the crank bolt and give it a good tighten if you want it to remain in place. Greasing the axle is meant to decrease the corrosion that can happen between the steel axle and the alloy crank. Similarly greasing pedal threads is a must, which i forgot last time, hence the beginning of the problems I had. There are those that disagree which bits to grease, I sometimes change my mind, but I’ve had more problems by not greasing than by greasing.
After removing the RHS crank I need to swap the chainrings from new to old:20130511-153459.jpg
He’s the finished result:20130511-153521.jpg
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The hawk eyed reader will note that my chainring is not reversible and is getting on in age (miles), when the teeth are like razor blades I’ll swap it, a derailleur setup would need this replacing already, my chain is 1% worn according to my chain wear indicator, I’ll replace that at nearer 2% probably, again derailleur owners would need to replace now.
The finished RHS:20130511-154408.jpg
While I was shopping for the above I also bought a saddle, Maddison Prime:20130511-154815.jpg
Here’s it fitted, note the road profile of it and the fancy ruler for elite setup:20130511-154824.jpg
I just stick it in the middle, angle the nose up a tiny fraction and that’s fine. Maybe I’ll fiddle with it in future, but I tend not to notice much difference. It’s definitely harder than my last saddle, but doesn’t seem to bother me yet as my cycling distances are tiny now I work closer to home and have a baby that takes up my cycling time.
That was that for that night, the next evening I did an oil change and tightened my mudguard bolts (Surrey roads rattle them loose). Next morning I’m all set for commuting again:
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What a lovely steel machine she is.

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Introducing Rudy the RANS Fusion ST with a Rohloff Speedhub #cycling

Meet Rudy:
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Named after the dinosaur in Ice Age 3.
You will notice he is a crank forward style bicycle which makes you feel a bit gangster as you cruise along. Rudy is a RANS Fusion ST (step through), the RANS Cruz is very similar, but has curved tubing. Rather than the normal derailleur gears, he’s kitted out with a mint condition Rohloff Speedhub. I’ve written about my other Rohloff before, that one is old and well used, this one is barely used, newer (hence lower friction seals) and is a fancy red colour. I bought Rudy as a complete bike second hand (but barely used) and I made a couple of changes, but nothing massive.

Introductions over, let’s go through some of the issues he had.

Notice anything wrong here?
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Yes, the blocks are on the wrong sides 20130202-153615.jpg
But that is not all, notice anything here?
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Yes, the pads were for different blocks and didn’t fit properly on one side. Closer inspection and the left and right are different, might be a manufacturer trying to prevent generic inserts being used as replacements
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Anyway, I swapped them for a different set and all is well
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Notice the bit of gaffer tape on the rim, I use that to toe-in my pads if I’m not feeling dexterous or i’m not having much luck at the time.
The second one shows Rudy is covered in road filth already – from the first test ride – mudguards are on the shopping list.

Next one, notice anything wrong?
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Yes, apart from the colour of the pedal, it is on the wrong side, which leads to the pedals loosening as you ride and eventually falling off. Why’s that? Check this
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Yep, they are a LHS crankset! Doh!

The fitted chain tensioner (required because of length of chain and no eccentric bottom bracket) was rubbish, fortunately I had a decent one i picked up second hand from eBay a while back, so I fitted that
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It’s far better and meant I could fit a standard triple chainring and manually choose a chainring (should I want to)
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Those are 152mm cranks so my midget wife can comfortably spin without hurting her knees.
All this of course meant I needed to extend the chain slightly
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Can you spot the shiny new KMC X8 quick links joining it? I hope there will be enough chain remaining for the donor chain to fit Bluebell, hopefully nothing wasted. Worth mentioning, I like KMC chains, though the quick links are anything but unless you use a pair of pliers.

That’s it pretty much, a few other accessories fitted and I was cruising in style (or as close to it as I get).

I’ve since tweaked a few more things, snapped the mirror off, fitted a new one, etc. The wife took a quick test ride today and the summary of her thoughts:

  • seat is comfortable
  • both feet can touch the floor at once
  • knees aren’t too high, so no knee strain
  • gears change without fuss
  • great gear range and very low bottom gear
  • no pressure / strain on hands, wrists or shoulders
  • it’s cool and different
  • I didn’t feel as stupid as I thought I might
  • I try not to think about how much it cost