Price: 4.64€ (16Lt)
The cassette key stops against the frame. A plastic insert comes with the key. Use it to prevent damage to the frame (unless you lose the piece). You may also use the plastic as a an extended handle for fast winding.
Pull the chain by pedal to unscrew a cassette.
Turn the wheel backwards to tighten it.
Mind that while unscrewing, the fixing nut of the cassette may jam against the frame. So, both ends of an axle of the wheel may get tight in the frame as well. Hence, keep the axle loose. Do not tighten or fix it prior to operation. It needs some space for unscrewing.
While tightening the cassette back onto the wheel, avoid excess force. About 40Nm is enough. That is 27kgf*15cm on a key of average length... Or 12kgf*35cm on a 70cm wheel (35cm radius). I use far less force.
You may discover the force to use by experiment. The force is sufficient as long as the cassette does not come off.
The size of spoke key is 3.25, instead of 3.3. Thanks to this it fits onto nuts of spokes tightly. So, it grips them better, and makes less damage.
I have asked the manufacturer to improve the design of the spoke key. Yet it is quite good already.
Price: 8.4€ (29Lt)
It is convenient to have a choice of tools: have one for field use (like 1669 above), and another for use at home (like 1630).
3.45mm
blue (3.3)
grey (3.45)
Price: 2.03€ (7Lt)
I have asked the manufacturer to improve the design.
I do not use this key, because it performs poorly, as I described. I have another key. It looks very similar to this one. Yet it is far better. It is made locally by a local mechanic. The man has committed suicide. That was in year 2000, if I remember well. He was not a brilliant mechanic to say the least. But he was a very good man. His key remains the best ever.
Wrench of medium length. 110/2
Price: 2.32-4.06€ (8-14Lt), depending on size
The manufacturer claims the short key to be a "cone wrench". But it is too thick for a cone of a hub of a bicycle wheel. Regular wrenches are but slightly thicker than its bigger end, and slightly thinner than its smaller end. They do make thin wrenches, however (article 1612).
Wrench 15-17mm is especially useful, as such nuts are both present in a bike.
8-10mm; 10-14mm (length: 172mm); 15-17mm
Other sizes
Price: 2.9-5.21€ (10-18Lt), depending on size
Other sizes
Price: 13.32€ (46Lt)
A separate insert comes with the tool (lower photo on the right end). It looks like a tiny hat. It is designed to plug into the hollow shaft of a Shimano "Octalink" bottom bracket. Then you pull a crank the usual way.
You do not pull or fasten cranks often. But when you do, a crank puller is indispensible.
Price: 17.37€ (60Lt)
Other chain tools. Some are of similar type, like vice, some like pliers. Some cheaper:
https://uniortools.com/eng/category/940771/chain
Type of operation: screw. Push out or in a pin of a bicycle chain. The use is obvious: Open (disconnect), or close (connect) the chain, when swapping an old one. Add, or remove links, to repair damage.
The tip of the tool pushes a pin in a chain. It may wear out. The tip is a long, thin rod. They confusingly call it a
pintoo. You can replace it with a spare.
A cap with a hole, and thread holds it. The cap does not tighten the tip. The tip is loose. It rotates, and slightly wobbles on the shaft. It may stay put, not rub against a pin of a chain, as you rotate the shaft by handle. Perhaps this makes it wear out less, as a pin of chain may be harder than the tip of tool.
I asked manufacturer to improve design, and to provide less bulky tools. As a result, you see new chain tools below. They did not implement all my suggestions yet.
Price: 4.06€ (14Lt)
However, bicycles tend to have bolts with hex sockets nowadays. So, screw drivers with fixed, or exchangeable tips of different types are available as well.
I chose the big and long driver for home use, where size, and weight does not matter. The handle is big, so, it allows more force, which does matter.
Other sizes
Price: 3.19€ (11Lt)
I chose the small and short driver for restricted spaces, and travel, where size, and weight matter a lot. The handle is smaller, so, it does not allow a lot of force. But it is a compromise. I chose length of 35mm. Shorter drivers, 25mm long, are available. Length of 25mm you may choose from cheaper drivers with black handle - article 627CR. Length 35 exists only in blue.
Other sizes
Price: 26.07€ (90Lt)
Useful for big nuts of various sizes, which you drive rarely, and don't want to have a separate key for each. Also for fixing various home appliances, which are notorious for differing sizes. Examples: Some keys for rear cassette have a head of 24mm. Some keys for bottom brackets have a head of 32mm.
I chose size 34 from a PDF catalogue (300mm long). But it turned out that catalogue in PDF differs from Web. So size 34 is actually 38mm... Yet the actual size is 40mm. The last mark on the scale is at 39mm.
You may use this wrench also to bend, or to straighten a bent part made of a sheet of metal.
Examples: disk brake, derailleur holder.
It is better to have this all-round tool, than ones, which are specialized
for the single task. Specialized tools cost too much, and do little.
There is a discussion about this in Lithuanian language with regard to straightening a disk brake:
http://www.velouostas.lt/forumas/viewtopic.php?t=710&p=8857#p8857
Other nominal sizes (in brackets - the measured sizes): 17, 23, 28, 32, 38 (40), 50, 60, 70mm.
Price: 23.17€ (80Lt)
Two scales: centimeters, and inches.
Useful for measuring of elongation of chain. It indicates the chain wear.
You would measure length per 10 links.
New chain: 127mm;
Worn chain: 130-132mm.
Wrong are all other methods, which sometimes even ignorant manufacturers of chains sell to you.
See my web page about cogs and chain wear.
It is better to have this all-round tool, than a specialized
indicator of wear of a bicycle chain. Specialized tools cost too much,
do little. And, as I mention in the link just above, what they do is a mistake.
There is a discussion about this in Lithuanian language with regard to measuring the elongation of a bicycle chain:
http://www.velouostas.lt/forumas/viewtopic.php?t=194&p=8856#p8856
Made in China. (Other tools are made in Slovenia.)
Resolution: 0.02mm
The web erroneously states:
accuracy.