Singlespeed & Fixed Gear - SS Killing Me On Hills With 46 X 16

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jimx200
04-06-10, 08:29 PM
Pretty new to SS and have been riding my SS (BD Clockwork) mostly on the flats. Now riding in S.F. and along our N. California coastline and my knees are sore with 46x16 and in a head wind. Suggestions as to a good "compromise" rear cog number..18 rear? Any S.F. riders have a favorite number? Mostly riding in upper Haight/Divisadero area and across the bridge into Sausalito.
Thanks much!
sharpsandflatts
04-06-10, 08:33 PM
46x18 seems like a good place to start. i ride 46x17 fixed. slightly taller but you don't have to worry about spinning on the down hills on a ss. also portland is less hilly.
Running 46x17 right now and it's not too bad, but I have to get a good start on most over passes or I'll be sluggish getting up them. Thinking of going to a 44 in the front and seeing how that goes, easier to get up those hills and no worry of spinning out on the way down.
Doohickie
04-06-10, 08:59 PM
I'm running 46/18 and I've made it up 12% grades without too much problem.
hairnet
04-06-10, 09:15 PM
46x19 ftw!!!!!!!!
I have a 16t cog on the other side of my hub, I save that for never
icyclist
04-06-10, 10:28 PM
There's a reason lots of off-the-shelf bikes come with 42x16 gearing.
spcialzdspksman
04-06-10, 11:04 PM
HTFU
I run the exact gearing on fixed here in the city.
Admittedly though, I would walk up one of these hills,
http://farm4.static.flickr.com/3612/3362499153_69623e3132.jpg
but I would tackle these for a few blocks.
http://z.about.com/d/sanfrancisco/1/0/x/_/-/-/potrerohill800.jpg
Just keep mashing :)
Get some gears before you wreck your knees. I once lived in a pretty mountainous area and was running a standard double with a 13-18 straight block. I mashed my way up 45-minute climbs in 42x18 over and over. I thought I was getting the better of the mountains but I ended up with meniscus issues instead. Do be careful.
If your knees are complaining, listen to them. Cogs are cheap, having a pile of them isn't a bad thing. Experiment with gearing, find a ratio that works for you. It isn't worth trashing your knees for big gear inch street cred.
If your knees are complaining, listen to them. Cogs are cheap, having a pile of them isn't a bad thing. Experiment with gearing, find a ratio that works for you. It isn't worth trashing your knees for big gear inch street cred.
Amen! Listen to your body. Knees don't really heal all that well. Get some gearing appropriate for the terrain and don't make the same stupid mistake I made.
Haagenize
04-07-10, 01:53 AM
46x19 ftw!!!!!!!!
I have a 16t cog on the other side of my hub, I save that for never
this
I loved my 46x19 winter gearing, I went back to 46x16 now its spring, but I kinda regret, although I am faster now, I don't like having to mash most of the time
Spinning is winning
Tomo_Ishi
04-07-10, 02:05 AM
Spinning is winning
+1 ... true for fixed gear stuff. I dunno about SS; seriously I forgot how to coast, now.
I am doing 49-19. I am silly have 19t on both side.
hairnet
04-07-10, 02:20 AM
Spinning is winning
yeah, but my max on flats with this gearing has been around 25mph. Without the aid of a decline it's difficult to spin much faster, for me. It's cool though, this is just my commuter bike so I don't need to be hammering for speed.
try whatever is the equivalent of a 44x16 or 42x16.
also, your knee pain could also be due to a poor fitment and not your gear ratio.
mihlbach
04-07-10, 05:23 AM
A gear change isn't going to magically make your knees feel good. First consider the position of your saddle and your riding technique. Is your saddle the correct height? Do you stand to climb hills or do you just sit and mash? If you are fairly new to cycling or just recently started riding more frequently its possible that the soreness you are feeling is related to your ligaments and tendons strengthening, which will improve over time.
BassNotBass
04-07-10, 06:23 AM
I'd swap from 16 to either 17 or 18 teeth but I'd have to admit that if I were living in SF, I'd be on a multi-geared ride even if it only had an IGH-3... sometimes they just make more sense.
46x19 ftw!!!!!!!!
I have a 16t cog on the other side of my hub, I save that for never
You'll wear yours out before me.
jimx200
04-07-10, 09:44 AM
for good info. A little background: my age puts me on the "bad side" of 50, have been riding since well...maybe age 7, also ride a 29er SS rigid without any problems..but it's geared lower. Have a nice Bianchi road bike, but having more fun with this SS.
Definitely going to a lower cog and if I still get the knee pain, use the SS for the flats. One thought is the White Industries dual cog...but how does one shift on the fly? Or is it just pick your cog and tighten wheel? This SS bike seems to fit me pretty well, but track geometry takes some getting used to due to shorter top tube and longer seat tube..I could actually use more top tube, but I'm on their 61 now so time for a longer stem. Regarding sitting and mashing...no way as that's too hard on the knees..I just stand up and pound out the hills. If knees still getting tender..the SS will probably be a donor bike for one of my nephews.
elemental
04-07-10, 10:28 AM
Here's a crazy idea:
My age puts me on the "good side" of half your age, but I have knees that are sensitive to abuse (i.e. climbing in a 46 x 16, which I have done as well). I am moving to a decent-sized city in June, and while I am currently using a 1 x 7 as my commuter, I want another fun and simple townie, but also want to be able to walk on my 30th birthday. As a solution, I am looking into two speed kickback coaster brake hubs. I can have a regular fixed gear frame with a front caliper, but that hub gives control of shifting and the rear coaster brake with the pedals without ugly cables and maintenance. This way, I can set the higher ratio to the equivalent of something I would normally cruise in or a little higher (let's say 46 x 17), and have a bailout climbing gear (in the case of the forthcoming Sturmey hub, this would be something like a 37% drop in gear inches).
While this is an admittedly strange solution, I think it's going to be a lot of fun, and it has the advantage that all you'll need to convert your fixed gear into a two-brake two-speed coaster brake wundermobile is a rear wheel built around a proper hub. Plus coaster brakes are really fun, and having an extra "turbo" ratio without the hassle of derailleurs or even a shifter (like you would need for a regular internally geared hub) sounds like fun too.
Just a weird solution to a similar problem, from someone who likes weird bikes.
Old school (http://www.sturmey-archerheritage.com/images/photos/pic-456.jpg).
tcs
jimx200
04-07-10, 07:49 PM
tcs..good one, and old school indeed.
elemental
04-07-10, 09:53 PM
The only problem with a 3 speed fixed hub is the cable routing on that frame. Hence the genius of the kickback hub.
carleton
04-07-10, 11:59 PM
for good info. A little background: my age puts me on the "bad side" of 50, have been riding since well...maybe age 7, also ride a 29er SS rigid without any problems..but it's geared lower. Have a nice Bianchi road bike, but having more fun with this SS.
Definitely going to a lower cog and if I still get the knee pain, use the SS for the flats. One thought is the White Industries dual cog...but how does one shift on the fly? Or is it just pick your cog and tighten wheel? This SS bike seems to fit me pretty well, but track geometry takes some getting used to due to shorter top tube and longer seat tube..I could actually use more top tube, but I'm on their 61 now so time for a longer stem. Regarding sitting and mashing...no way as that's too hard on the knees..I just stand up and pound out the hills. If knees still getting tender..the SS will probably be a donor bike for one of my nephews.
Dude, no offense but, you should know better.
Pick the right tool for the job: If you are tackling the hills of SF, do it on a road bike.
Or change the job: Go around the hills. I used to ride fixed in SF years ago. I rode a 48/18 or 19 and I still had to ride around all of the hills. I'd rather go over 5 blocks than climb some epic hill...just to have to fight the descent on the other side.
deep_sky
04-08-10, 12:28 AM
The cables associated with a geared bike being ugly are a subjective measurement, as is the "hassle" of derailleurs, but maintenance on a geared bike is no different than a fixie or ss unless you live in an area that gets a lot of snow and thus a lot of salty slush that requires extensive cleaning. Here in the bay area, a ss or fixie would not be any more or less maintenance than my geared bike, such as a wipe of the rag after a ride to get rid of cruft, and regular application of lube every so often. Change the chain when it wears out, change cog/ring when they wear out too. Unless the fixie/ss crowd eschews a clean drive train like they do brakes? *shrugs*
OP- riding steep hills with such gearing will be hard on your knees, whether you are prone to knee issues or not. When your knees hurt, listen to them because when they hurt, it means that a lot worse things are happening than a sore muscle after overdoing it. Knee pain can be indicative of the beginnings of serious knee issues if you don't correct the problem. If you can ride the same hills with your geared bike with less pain, then you know that your knees simply won't tolerate the strain put upon them by a riding a ss. some people can tolerate it, some people think they have to be tough and are willing to cripple themselves so they can have the street cred, and some people simply cannot tolerate it no matter what they do.
elemental
04-08-10, 07:16 AM
The cables associated with a geared bike being ugly are a subjective measurement, as is the "hassle" of derailleurs, but maintenance on a geared bike is no different than a fixie or ss unless you live in an area that gets a lot of snow and thus a lot of salty slush that requires extensive cleaning. Here in the bay area, a ss or fixie would not be any more or less maintenance than my geared bike, such as a wipe of the rag after a ride to get rid of cruft, and regular application of lube every so often. Change the chain when it wears out, change cog/ring when they wear out too. Unless the fixie/ss crowd eschews a clean drive train like they do brakes? *shrugs*.
Right, but on some bikes, the cables cannot be easily added (hence the need for the sweet kickback hub).
And I disagree that there is no maintenance difference. When I took my road bike out of hibernation a month ago, cables had stretched, the shifting was off, and a derailleur needed adjustment. Not sure I've ever done that maintenance on a fixed gear. Plus, when a drivetrain does wear out, a fixed chain and a new cog cost a little less than a nice road cassette and chain. When was the last time you were riding your fixed gear, noticed some grinding and hesitation shifting into the smallest cog, and tried to make a mental note to adjust your limit screw when you got home? Or had to accept the fact that the cheap front triple you're working on is just never going to shift that well no matter how much time you spend dialing it in?
I running 43x18 right now and it been good . But just like what everyone else is saying, If the hill is just too big, go around it
The only problem with a 3 speed fixed hub is the cable routing on that frame.
And yet somehow they surmounted that problem in 1904 (http://www.sturmey-archerheritage.com/images/photos/pic-6.jpg).
tcs
jsmonet
04-09-10, 08:38 PM
Right, but on some bikes, the cables cannot be easily added (hence the need for the sweet kickback hub).
And I disagree that there is no maintenance difference. When I took my road bike out of hibernation a month ago, cables had stretched, the shifting was off, and a derailleur needed adjustment. Not sure I've ever done that maintenance on a fixed gear. Plus, when a drivetrain does wear out, a fixed chain and a new cog cost a little less than a nice road cassette and chain. When was the last time you were riding your fixed gear, noticed some grinding and hesitation shifting into the smallest cog, and tried to make a mental note to adjust your limit screw when you got home? Or had to accept the fact that the cheap front triple you're working on is just never going to shift that well no matter how much time you spend dialing it in?
it's actually quite easy to adjust both derailleurs if you have something to hold up the bike, and there's no reason a cassette shouldn't last you >5k miles (i'm going worst case that isn't total neglect) between replacements. at that, 7 to 9 speed cassettes aren't much more expensive than a decent chain, so getting one every 3~5 chains shouldn't be a big deal. cup noodle it a couple days and you've saved up enough. keep your chain clean, lubed, and mind the stretch and you can get considerably more than 5k out of a cassette.
seriously guys, you make far too much of geared maintenance.
that stomp and grind is probably doing the number on the OP's knees, but without any info on his fit, there's just as much chance the pain is coming from a poor fit, only exacerbated by the steeper hills. /total armchair diagnosis
jimx200
04-09-10, 10:39 PM
Update: had a new 19 tooth freewheel cog installed and it's MUCH better on the hills. I'll run with this for awhile and see if doable. Did take out my SS 29er for a two hour pounder on some rutty/rooty XC trails..knees felt good too. Someone mentioned bike fit: not a bad idea as this track geometry with it's very tall seat tube and shorter top tube has me tweaking it constantly to get that perfect fit dialed.
The Messenger
05-04-10, 08:42 AM
I'm debating some sort of X-speed hub for my single speed (46/18). I think the very minimum a 3 speed. The areas I ride are somewhat hilly and I can't keep up with the pedals above like 22-24mph (and that's really ripping for me). Any pics of converted bikes?
elemental
05-04-10, 08:58 AM
I'm debating some sort of X-speed hub for my single speed (46/18). I think the very minimum a 3 speed. The areas I ride are somewhat hilly and I can't keep up with the pedals above like 22-24mph (and that's really ripping for me). Any pics of converted bikes?
A bike with an S2C (http://thebikeshow.net/fixie-killer-sturmey-archer-s2c/) hub will have two different ratios and will look exactly like your bike now (well, you'll have to build a rear wheel around it, but no additional cables, shifters, or anything of that nature). This is nice, as you can swap bars and such without having to worry about your shifter working (for example, a Sturmey bar end shifter would not migrate from drops to risers very well).
Unfortunately, it's going to take a few more months, but I will continue shamelessly promoting this because I think it's my favorite cycling product coming out in the near future.
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