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  1. Replies
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    As lights to "be seen", the Niteflux Redzone and...

    As lights to "be seen", the Niteflux Redzone and Whitezone is hard to beat.

    I've owned mine for more than a year and they are good and reliable.
  2. This would depend on the design of the ring. ...

    This would depend on the design of the ring.

    Early non-round rings were designed to take advantage of the increased leverage (when the crank is about 90 degrees during the power phase) to push...
  3. Lol. Why not?

    Lol. Why not?
  4. Might I suggest a Doval elliptical 34T chainring...

    Might I suggest a Doval elliptical 34T chainring with 16% ovality?

    Link here:
    MTB 34T 16 5 OCP Mode BCD104 SNW Single Doval Elliptical Oval Chainring 3 | eBay
    (looks like they've got a...
  5. Took me around 5 hours, broken up over about a...

    Took me around 5 hours, broken up over about a week, of start-stop pedaling to get comfortable balancing and controlling my FWD MBB Cruzbike. I was 31 at the time. I think sleeping on the problem...
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    For tropical warm conditions ventilation is the...

    For tropical warm conditions ventilation is the bottleneck
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    380

    Any suggestions at all on this problem?

    Any suggestions at all on this problem?
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    I'm having some difficulty removing the inner...

    I'm having some difficulty removing the inner assembly from the shell.

    I'm referring to this video here and have reached the 2mins 47second mark:

    https://youtu.be/Dz-3PfboKTw?t=2m47s

    I've...
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    Noted about the shield. Though I did come across...

    Noted about the shield. Though I did come across a youtube video where a larger sprocket with shield is replaced with a 14T sprocket without. Not really sure how that works. I'll post it up if I find...
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    For this situation what would be the best way to...

    For this situation what would be the best way to deal with the problem? Replace the shield? Would it be possible do without it?
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    I disassembled the wheel from the bike and...

    I disassembled the wheel from the bike and removed everything upto and including the sprocket and shield just behind it. There was some gunk back there which I cleaned up.

    At this point I tried...
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    Thanks. I'll try that first and report back if...

    Thanks. I'll try that first and report back if there's an improvement.
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    Shimano Nexus 7 problems

    I notice that my second-hand Nexus 7 hub - model SG-7R50 (printed on the hub) does not freewheel much at all.

    Furthermore if I pedal backwards the wheel starts turning backwards as well - I don't...
  14. I love my Oyama East Village bike to death. It...

    I love my Oyama East Village bike to death. It fits my purpose perfectly as the ultimate commute companion.

    Some features I like are as follows:

    1. It rolls on the two main driving wheels and...
  15. I'm basically looking for an unmounted device for...

    I'm basically looking for an unmounted device for switching chainrings. I don't know what exactly a good tool for this purpose might look like or how it might work.

    Sticks, paper towels, gloves,...
  16. Just to be clear (for some who seem to have...

    Just to be clear (for some who seem to have missed the point).

    A FD is useful for shifting on the move. As it is I don't really need a FD as I can predict what chainring I would need before...
  17. Since my compact is a Doval non-circular type, an...

    Since my compact is a Doval non-circular type, an IG crankset would not work as aligning the chainrings would be impossible.
  18. Ha! You'd be surprised. Aside from the brake...

    Ha! You'd be surprised. Aside from the brake levers, on the left hand I've got an Airzound trigger plus rear view mirror. The right side the IGH shifter, handlebars forward camera, bell. Both sides...
  19. 465890 Something like this?

    465890

    Something like this?
  20. This is the idea, but I was looking for something...

    This is the idea, but I was looking for something built for the purpose.



    That suicide derailleur is interesting. Never saw one of those before.

    A downtube shifter is viable with a standard...
  21. Do any of you switch chainrings manually? Are there any tools available for the job?

    I recently switched from a single 48T chainring to a 52T/38T Doval compact.

    The frame can accommodate a front derailleur. However I have been reluctant to add any further clutter to my handlebars...
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    If you can return the bike then maybe you should....

    If you can return the bike then maybe you should. Making these sort of modifications can be expensive, and unnecessary if there are other options out there. Also I'm not sure about warranty...
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    Do you mind telling us what is the rim size and...

    Do you mind telling us what is the rim size and tire size you have used on that second link?
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    Yes the stock specs seem wrong. There are several...

    Yes the stock specs seem wrong. There are several websites that do the gear inches calculation (try a web search). Here is another:

    BikeCalc.com - Bicycle Gear Inches Chart

    Same result though.
  25. Replies
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    Use Sheldon's Gear range calculator: Sheldon...

    Use Sheldon's Gear range calculator:

    Sheldon Brown's Bicycle Gear Calculator

    My input:
    Wheel Size: 20x1.75
    Crank length: 170mm (does not feature in gear inches calculation)
    Gear units: ...
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