Newest Questions
22,058 questions
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105
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Topeak 7" pliers wrench specifications?
I just saw that Topeak have a 7" pliers wrench:
but they provide no detailed specifications and I can't find any reviews. I'm most interested in jaw capacity, jaw dimensions (esp. thickness) and ...
2
votes
2
answers
139
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How do you choose between a no-rise and a some-rise MTB handlebar?
How do you choose between a little-to-no-rise (say 10mm) and a some-rise (say 40mm) MTB handlebar?
In particular, is having a 30 or 40mm rise more versatile because it enables you to fine-tune the ...
4
votes
3
answers
459
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42t cassettes and RD capacity
Background (skippable):
I'm a heavier rider, and I've started to use my 2007 Roubaix for bikepacking in the hillier parts of Australia. There's climbs in excess of 10% that I can't get up without my ...
4
votes
1
answer
143
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(Physics related - sort of) Violent pedal kickback event vs hard pedalling during a sprint. Which one is the most stressful on the freewhub?
I searched for this quite a bit but couldn't find an answer.
Imagine the most violent pedal kickback ever. Big drop to flat, low gear (biggest cog), rear wheel locked, freehub engaged at the moment of ...
6
votes
2
answers
362
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Electronic Shimano Alfine SG-S7051-8: Converted to manual shifting?
I picked up a second-hand Shimano Alfine SG-S7051-8 hub that comes with the electronic (Di2) shifting unit.
Is it possible to remove the electronic shifting unit and add a manual shifting unit instead?...
1
vote
1
answer
100
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Falcon Olympic serial number 1266..is this good, bad, or neither
I love my Falcon, but I would love to know if this serial number is relative to the order it was manufactured..any ideas? Haven't asked AI yet lol
3
votes
4
answers
316
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Gravel bike tires - More grip on gravel Without Losing Speed
I’ve been riding my Scott Metrix 20 (2023 model) for almost a year, and it’s time to replace the worn tyres.
I’m looking for an option that offers more grip on unpaved paths (nothing extreme. I mostly ...
2
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2
answers
88
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Can I use a 3-speed braze on front derailleur with a Bafang BBS02 motor?
I've been working on converting my bike to an e-bike.
I'm aware that there is a 20mm gap between the motor and the chainring. I bought a braze-on adapter from IRD that extends the reach of the ...
8
votes
2
answers
355
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Replace Missing Floor Pump Head - 'Maxxis Air Elite'
I have inherited this Maxxis Air Elite Floor Pump. It is working well except for a critical piece as you can see in the attached image.
I have an existing pump so would like to set this one up to use ...
0
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2
answers
107
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I cannot get the rear deurailler to shift up past about halfway the cassette, it’s a SRAM NX rear driller, brand new and brand new chain
I cannot get the deurailler to move past the middle of the cassette, the shifter is as far up as it will go, I have tried the barrel adjustment but to no avail
7
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1
answer
714
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What is causing chain to drop to lower cogs while backpedaling?
I have a 26" MTB which shifts pretty ok while riding but when I rotate the crank arm or move the bike backwards, chain drops to one cog lower on the cassette. Why is this happening? The drive ...
0
votes
0
answers
36
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What year is my Haro
For many years I have had many bikes and most of them are easy to identify but this one is giving me a run around and I can’t find out what make or model it is.
The serial number BEW1D0169 doesn’t ...
2
votes
1
answer
86
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Rear axle road bike side to side play
I have some side to side play in my rear axle (see video). I saw the parktool video that said a bit of play is normal but when engaging to teeth there should be no play. I can create this play even ...
4
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7
answers
1k
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How does increasing battery capacity at the same voltage increase an e-bike’s electrical range?
I understand that e-bike batteries are often rated by voltage (V) and capacity (Ah or Wh). My current e-bike has a 36 V 10 Ah (360 Wh) battery, and I’m considering upgrading to a 36 V 20 Ah (720 Wh) ...
8
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5
answers
735
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Inches and centimeters on inner-tube sizing
My girlfriend's grandfather has a set of bicycles in need of new inner-tubes with 650 mm listed on the tires. I went to a bike shop and told the folks there the size I needed and bought two inner-...