Sunday, November 18, 2007

Got my Dingle on!

Today I did an errand on the Blue Truck (Xtracycle). Afterwards I was going to go back out and put on some more miles. I ended up staying home to get the Cross Check ready for slippier conditions that could happen anyday now. Maybe even tomorrow if we get the 60% chance of snow ovenight. Since I'm not the greatest mechanic, and I usually screw something up in the process, I decided to pass on the riding and use that time to mess with the bike and give myself a bit of extra time so as not to be rushed.

Since my winter commuter in past years is now my Xtracycle I needed a new plan for commuting in ice and snow. No, I don't use the Pugsley for commuting. I don't like to take it out in all the salt and sand on the roadways. The last couple of years I rode the fixed gear Cross Check when the roads were dry and the old Specialized Rock Hopper with studded tires on it for icy/snowy days. Now that the Rock Hopper is the Xtracycle with mostly new components and new paint , I'm not crazy about the idea of taking it out for daily salt and sand duty. It could still get called into duty if my other plans don't work. Back in August when I started thinking about the upcoming winter commuting season I decided to try to make the Cross Check an all purpose commuter. One issue is the fixed gear. I have to ride hills everyday. I can't get up some of the hills in my 41 x 17 gearing without standing. On ice, I can't climb out of the saddle and maintain traction in that gear. I didn't want to give up my fixed gear, so I decided to give Surly's Dingle Cog a try.
Here it is after I installed it this afternoon. Essentially it provides you with a second fixed gear. Designed with the idea of riding your bicycle to your nearest trails and then allowing you to have a lower gearing when you get to the trails. You have two cogs in the back and two chainrings in the front. Both are three teeth difference in size. You can loosen the wheel, move the chain over and have a lower (or higher) gearing without having to change the length of your chain. I thought this could give me a lower gear for days it was slippery conditions during my commute. I also added a rear brake a few months ago to give me added braking control when it gets slippery.

What I end up with is two gears. A 41 x 17 or 65 gear inches, and a 38 x 20, or 51 gear inches.
Above and below is pictures with the chain on the inside position.

And the chain on the outer position. Once again, this is done without changing the length of the chain.
I took it for a test ride today up the hill I start my commute with everyday. I'm not so sure the 51 inch gear will be low enough once there is an inch of snow on the roadway. Only one way to find out. Wait for snow.
I also put my studded tires on. I'll be having some noisy commutes for the rest of the year. I went from 700c x 28mm slicks to 700c x 35mm studded tires. They make some noise! I had to take some time to adjust the fender line to clear these tires. The Planet Bike Cascadia Fenders are supposed to go up to 35mm tires. There is room, but it took quite a bit of tweaking to make sure the tires cleared the fenders.

A month ago I had decided to ditch the Dingle Cog idea for another plan. I wear out the teeth of my chainrings and my chains fairly quick in the winter due to the large amount of sand and salt dumped on our roads. I was afraid the outer chainring would get most of the use and wear. I was concerned that the chain would wear so badly that the 5% of the time I needed to use the inner chainring that the chain would be so badly worn it wouldn't work on the newer unused inner chainring. So I decided to go with an internally geared hub for the winter. I picked an 8-speed Shimano Nexus hub. When I went to my LBS to order, he talked me into getting the 7-speed model to save me a bundle of money. By time he got around to ordering the 7-speed he discovered he couldn't find one. Everyplace he called has been out of them since June (unless I wanted the coaster brake model, which I don't). QBP says they'll have some in by Dec 1st. We'll see. I may just end up going with the more expensive 8-speed.

The nice thing about all of this is the versatility of the Cross Check. It will take thin tires, fat tires with fenders; you can run it geared, fixed, or with an internally geared hub...you pick your set-up, whatever it is and you can do it on a Cross Check. And it's the most comfortable ride I've ever had. I love that bike.

Sunday: 12 mi
November: 389 mi
2007: 7,045 mi

15 Comments:

At 2:47 AM, Blogger Antoine said...

I have a dingle set-up similar to this on my Pugsley, except on the back the two (separate) cogs are on a singlespeed freehub, not fixed. My chainrings are Surly stainless steel singlespeed ones and show no signs of wear from riding in sand on the beaches down here in NZ. I'm not sure if they make them in road tooth counts.

 
At 9:37 AM, Blogger Jerome said...

Cool. I'm interested to hear how it works in the white stuff.

 
At 11:49 AM, Blogger Vik said...

Your CC setup with an internal hub will be pretty cool for commuting. What kind of shifter will you need to use with a Nexus hub - are we talking grip a shifter?

 
At 12:35 PM, Blogger Doug said...

antoine...the smaller chainring I'm using is a Surly stainless steel. The large chainring is a Rocket Ring 41t. Surly makes a 40t and a 42t, but not a 41t. I wanted to stick with the gear I am used to, so I stayed with the 41 x 17.

Vik...There is only one shifter that works with the Nexus 8-speed and it costs about $55 and can only be used on a flat bar. However, Harris Cyclery sells an adaptor so you can mount it on the end of a drop bar. The adaptor costs like $45. That's why I got talked into the older 7-speed. Apparently you can use any old indexed 7-speed shifter. I'm looking for an old Shimano down-tube shifter to use with the 7-speed. If things don't develop soon, though, I may just go with the expensive 8-speed and drop bar adaptor.

 
At 2:38 PM, Blogger Apertome said...

I'm looking forward to reading more about your winter riding exploits. I hope to ride mostly through the winter myself but realistically I know my mileage will go way down.

Thanks for the advice on shoes. I can't justify the cost of those Lake boots since I do have the expense of a car, and our winters are shorter and milder. However, I think platforms will work OK for me for most things; I've found them to be better than I would've thought. Then I can wear any old shoe or hiking boot or whatever.

 
At 2:39 PM, Blogger Apertome said...

I meant to add, I ran into a guy finishing a tour a few months ago and he was riding a Cross Check. He said he loves his for the same reason: versatility.

My next bike might well be a Surly, who knows?

 
At 3:32 PM, Blogger Bob said...

Check out NOS on e-bay - they have 7 speed downtube Shimano index shifter kits for $25.00. I got a part for a friends bike from them and the service was great.
Boz

 
At 8:19 PM, Anonymous Dirtyspeed said...

I had a 8 speed Nexus on my old Milano and used all last winter here in Mpls. I had no problems what so ever and it was a flat bar. Pretty smooth actually. However I traded my Milano for a RedLine 925 which has some pretty dencet winter tires on it now, not studded with metal but not road either. People were telling me that the hub would freeze up in sub zero temps but I went every day and nothing of the sort happened. I guess shifting alot would be a good idea but in Duluth I am sure that wouldnt be a problem.

 
At 8:53 PM, Blogger Doug said...

There was a guy in the AH135 this year with a Rohloff internally geared hub. That hub froze up in the first 30 miles. He had to drop out because of it. Of course those were extreme conditions.

 
At 10:33 PM, Anonymous Anonymous said...

With the way the earth is heating up...I would not plan on snow until January or maybe not at all...2006 October was the warmest on record, before that it was October of 2005 and before that it was 2004, well you know the math, basically we're "cooked"...I remember 20 to 25 years ago we were ice climbing by October 30th and skiing good conditions by mid-November...Like Dylan sez: A Hard Rain's Gonna Fall.
Charlie

ps I am pumped for the Arrowhead, but I have put to rest any plans on skiing it...Re: "Climate Change" (or Hell on earth) of course, I am not saying that itz a forsure thing...and the nice folks @ Exxon and Haliburton will figure something out to save us!!!

 
At 2:54 AM, Blogger Antoine said...

A little bit weird looking, but you could mount the shifter on a small bar/stem like this guy has done and then it would be easy to remove for the summer fixed set-up.

http://www.flickr.com/photos/shaycameron/467419891/in/set-72157594472389340/

 
At 12:49 PM, Blogger Doug said...

antoine...I've seen that kind of mount for the shifter. I wasn't sure how it would work with the front brake cable for the cantilever brake. It's hard to tell from the pictures you gave me how that was solved.

 
At 10:05 PM, Blogger Smudgemo said...

I'm totally into the idea of an internally-geared hub for commuting. I'd love the simplicity of a fixed chainline and a chaincase to cover the whole thing.

 
At 8:52 AM, Anonymous Anonymous said...

Hey Doug: Funny story--on Friday I too did the commute to work (from East Duluth to Esko)...on the way home I did a long convoluted scenic route that included aspects of both the Munger trail and Jay Cook State Park road and even Becks Rd...About half-way to Duluth on the Munger I crossed paths with a guy, we exchanged pleasantries, and he indicated to me that a guy on a Surly with saddle bags was up ahead, so I put the hammer down and after some real fast, albeit slippery work I caught the guy...I was thinking that it was you...Anywhere, this new guy sez to me, "I think the guy on the Surly is heading out towards Gary New Duluth"...I had time and I wanted a long ride, so I headed that way and sure enough I see a guy out front...I finally caught him, but it wasn't you!!!! It made for a great work-out :) Charlie

 
At 12:41 PM, Blogger Jeff C. said...

So, how's the dingle working? I think I may have to go the cheap route because I'm going to get real mad real fast with derailures and freewheels...
Jeff

 

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