Fixed gear ratios
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- This topic has 94 replies, 24 voices, and was last updated 10 years, 4 months ago by
americancyclo.
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November 17, 2014 at 12:32 am #1014851
mcfarton
ParticipantPedro makes a nice fixie tool. I carry one
sent from your mom’s house
November 17, 2014 at 12:44 am #1014852jrenaut
Participant@vvill 99759 wrote:
Your hub comes as either fixed/free or fixed/fixed. You can’t really put a fixed cog on a freewheel threaded side (you technically can, but there’d be no lockring, so it’s not recommended).
If you want fixed/fixed you have to get a wheel built with a fixed/fixed hub.
One option could be to get a “dixed” (double fixed) gear cog. I think Surly makes them. http://surlybikes.com/parts/drivetrain/dingle_cog
Your chainline will be a little less perfect though, and you have to make sure your chain length is right for both (although that’s true if you had 16 and 18 on either side anyway).Btw, 48-15 is really quite a tall gear (48-16 is already a bit higher than what most city/urban fixed gear riders would run, I think, although I know Dirt and OneEighth often run 48-16.)
That’s disappointing. If I have to change hubs then I’ll probably just wait until I’m ready to upgrade the wheelset. And it means I definitely need the tools so I can switch back and forth. But I’m 46-18 now, looking to go to 46-16 or 46-15, not 48.
November 17, 2014 at 1:04 am #1014854vvill
Participant@jrenaut 99761 wrote:
That’s disappointing. If I have to change hubs then I’ll probably just wait until I’m ready to upgrade the wheelset. And it means I definitely need the tools so I can switch back and forth. But I’m 46-18 now, looking to go to 46-16 or 46-15, not 48.
Ah sorry, for some reason I thought it was 48-18.
I can’t give advice on a fixed gear lockring tool… I actually don’t own one!
November 17, 2014 at 1:10 am #1014856dcv
ParticipantI have Hozan lockring pliers, works better than the single sided tools
http://www.universalcycles.com/shopping/product_details.php?id=40354November 17, 2014 at 1:13 am #1014857Bilsko
Participant@dcv 99766 wrote:
I have Hozan lockring pliers, works better than the single sided tools
http://www.universalcycles.com/shopping/product_details.php?id=40354That is much nicer than the single-sided tool that I use, which is essentially a bike-specific spanner wrench.
November 17, 2014 at 1:26 am #1014865jrenaut
ParticipantSo, the lockring tool is basically an adapter that lets you use a regular wrench to remove the lockring? And the wrench dcv linked is a wrench that removes the lockring without and adapter?
November 17, 2014 at 1:43 am #1014869dcv
Participantyou need a lockring tool to remove the lockring, it’s reverse threaded
After you remove the lockring you need a chain whip tool to remove the cog, which is threaded regular
November 17, 2014 at 2:31 am #1014871jrenaut
ParticipantOk, so the thing you linked is just a better tool for removing the lockring. Maybe I’ll ask for one for Christmas.
December 30, 2014 at 1:05 am #1017949jrenaut
ParticipantJanuary 9, 2015 at 1:15 am #1019267jrenaut
ParticipantI’m officially at 46/16. I might have had some issues getting there. Despite dcv’s explicit instructions as to standard/reverse threading, I was still pushing the chain whip the wrong way and broke it. Luckily, I worked it out, and the new cog is installed. Now maybe I can go down a 3% grade without spinning out, or break 25mph at Hains Point without my knees exploding.
January 9, 2015 at 1:20 am #1019271dkel
ParticipantI’ve been pretty happy with 46×17 so far. I could see going to 16, but I’m not quite there yet (especially after battling hills and headwinds simultaneously on Monday—that crap just about killed me).
January 9, 2015 at 1:27 am #1019272jrenaut
ParticipantAs I live in Columbia Heights, it may come as no surprise that my house is on a hill. I’m a bit worried about getting home after, say, 40 miles on the W&OD. But if i can do the hill on the Xtracycle with two kids, I must be able to do it at 46/16, right? We’ll see this weekend.
January 9, 2015 at 1:50 am #1019274dkel
ParticipantYou’ll be fine. Just spin up early. It’s amazing how different hills feel on a fixie: stuck with the same gear ratio on my geared bike, and I’d crap out. It’s not just not having a choice but to keep pedaling, either. I can’t put my finger on it.
January 9, 2015 at 2:03 am #1019270jrenaut
ParticipantI know what you mean – I can’t put my finger on it either. It’s too bad i took today off work to go hear my wife argue in court so I can’t blow off work tomorrow to go test it out.
January 9, 2015 at 2:31 am #1019276TwoWheelsDC
Participant@jrenaut 104392 wrote:
As I live in Columbia Heights, it may come as no surprise that my house is on a hill. I’m a bit worried about getting home after, say, 40 miles on the W&OD. But if i can do the hill on the Xtracycle with two kids, I must be able to do it at 46/16, right? We’ll see this weekend.
As a north Arlington resident, I scoff at your hill! Seriously though, you’ll get used to it. My hardest finish was the Tour of Richmond, which was 100 miles (on 48×17), with a pretty mean headwind for the last 20 miles and a couple good hills right at the end. Definitely was slow going, but standing and grinding it out is almost like a skill you learn. And for me, the grade of the hill is really the most important factor…above about 10-12% I struggle no matter how fresh I am. Below that I can usually get up it now matter how tired I am and even if it’s really long.
I have three fixed gear bikes now…running 46×18 on my State, 46×17 on my Nashbar, and 48×17 on my Cinelli. They’re all geared just about right for what I use them for, although I might swap the the cogs on the State and the Nashbar, since the Nashbar is like 6lbs heavier. This spring/summer, I may try a 48×16 on my Cinelli, but that’s a pretty hefty gear. I guess I have to go with Fixed Gear Rule 10: It never gets any easier, you just go with a smaller cog.
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