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Messages - RussSeaton

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271
Gear Talk / Re: Kona Jake vs Trek 520
« on: June 30, 2011, 06:53:40 pm »
The Jake the Snake cyclocross bike is a low end American cyclocross bike.  So it does not have European racing cyclocross geometry.  It has touring bike geometry.  Its not quick handling.  Frame geometry wise it would work fine as a touring bike.  But the fork probably does not allow braze on low rider racks.  If its an aluminum fork you can probably clamp a low rider rack onto it.  It will probably have one eyelet at the fork tips.  Rear should be able to accomodate a rack and has eyelets.  Big problem will probably be the crankset.  If it does not come with a triple crankset, then you will have to install one.  And then you may have problems with the left STI shifter being a double and not working with a triple.  And you will probably need a bigger cassette than comes standard with the Jake Snake bike.  And new chain for the bigger cogs.  By the time you convert the Jake Snake bike over to a capable touring bike, you are pretty close to what the Trek 520 costs.  If you pull a trailer you will still need the triple crankset, maybe new shifter, cassette, and chain.

272
Gear Talk / Re: Ipad, Tablets vs. Netbooks
« on: June 30, 2011, 06:40:40 pm »
When riding with the Shimano 72 or the 80, did you notice any drag? Also thanks for the resource, Starbike.

No.  I have used the 70 Shimano generator hub on several 1200k and 1000k brevets and many shorter ones.  I never noticed any drag whether the light is on or off.

273
Rear Derailleur Chorus Ultegra 6500, long cage
Shifters Chorus Ultegra 6500
Brakes Chorus Ultegra 6500
Seatpost Chorus Ritchey
Hubs Chorus Ultegra 6500

I'm guessing the other person thinks fraud because the above descriptions make no sense.  Chorus is a Campagnolo group.  Ultegra is Shimano group.  You cannot have a Chorus Ultegra rear derailleur, shifters, or hubs.  As for the seatpost, you can't have a Chorus Ritchey seatpost either.  Campagnolo and Ritchey are two separate companies.  The person who wrote this advertisement is clueless about bike parts.  I would not trust anything about this bike.  Someone may be selling a mythical bike and just grabbed words off the internet they thought would appeal to a broad range of people.  Not realizing the names they combined made the description nonsensical.

274
Gear Talk / Re: Classic Randonneur Build
« on: June 17, 2011, 02:09:17 pm »
This approach has a couple of problems.  First, if you narrow the hub, the axle will probably stick out past the dropout faces and the qr skewer will not tighten properly.  You will have to shorten the axle by the amount of the spacer you remove.  Second, narrowing the hub will require redishing the rim and will increase tha amount of dish.

If the frame has 126 mm dropouts and you want to use a 130 mm hub, just squeeze it in or cold set the frame.  If the frame has 120 mm dropouts, find another bike to use.

I've converted a 135mm Deore hub down to 130mm spacing.  Took out a few washers.  Redished the wheel.  Easy to do.  Wheel isn't enough weaker to worry about.  The dropouts on my frame were more than wide enough to take up the extra axle sticking out.  You have to be careful when putting the hub back together to get the right amount of axle sticking out each side.  But the axle easily fit in the dropouts.

I'd agree if its 126mm, you can probably make it work.  If its 120, get another frame.

275
Gear Talk / Re: Classic Randonneur Build
« on: June 06, 2011, 12:32:46 pm »
The bike itself is a steel frame with Reynolds 531 and with Campy dropouts. Its a 1984. I have no idea about widening the rear end but it sounds kind of risky and so i think i will most likely use contemporary parts.

How can i tell the right sizes for wheels. hubs, cassettes?

If its a touring frame, it probably has cantilever posts on the fork and seatstays.  If so, then trying to fit 700C wheels into a 27" wheel frame will be problematic.  The posts will be too high for the brakes to correctly squeeze the rims.

But if its centerpull, sidepull brakes, then just put some wheels into the frame.  700C if you have some around.  See how far the brake mounting hole is from the rim.  Check the front wheel.  Front wheels are 100mm spacing since forever.  Modern short reach sidepull brakes have about 37-47mm reach.  You can buy modern sidepull calipers with up to about 60mm reach.  Check Tektro brand.  See if the distance from the mounting hole to the center of the rim sides is about 2 inches or less.  If so then your bike is 700C probably.  And you can buy modern brakes to fit the bike.  If the distance is around 3 inches, then its a 27" wheel frame and you will have a hard time getting brakes to fit if you put on 700C wheels.  Remember you are putting a small 700C wheel into the frame to measure with.  I'm pretty sure you can buy 27" rims and tires today.  So you could build up a set of wheels to fit the frame if you want.

Hubs are easy.  Just put a tape measure between the rear dropouts.  Measure inside face to inside face.  If its 126mm then you need hubs from long ago that measure 126mm.  Freewheel, won't be cassette.  As mentioned, you can put modern 130mm wheels/hubs into your 126mm frame.  If you go 126mm hubs, then you are talking freewheel.  Freewheels are available in 5-6-7-8 speeds.  If you go 130mm hubs, then 7-8-9-10 cassetes are available.    May be some problems fitting 7 speed cassettes onto 8-9-10 hubs though.  Your rear cogs will be determined by what shifters you go with.  If friction, then you could go anything with number of cogs.  If indexed, then the rear cogs is determined by how many clicks you have on the shifters.  Get your shifters first, that will determine what you do with the rear wheel.

276
Gear Talk / Re: Classic Randonneur Build
« on: June 05, 2011, 04:02:22 pm »
Early 1980s means 120mm frame spacing at the rear hub.  Maybe 126mm, but I doubt it.  If its 120mm, then I would not want to spread that to 130mm to fit modern 8-9-10 speed cassettes/wheels.  That is too much spreading.  If its 126mm, then it can be spread to 130mm by a shop that knows what it is doing.  Or you can just squeeze the rear wheel in each time.  May be very difficult to find a shop that knows how to correctly spread a bike frame.  Road frames have been 130mm for 20 plus years now.  The spreading knowledge is gone.  I have no interest in modernizing an old frame.

If you go classic as you state, then it means running 5 or 6 speed freewheels in the frame.  And downtube shifters.  If you can find them.  Friction since indexed shifters did not come along until 7 speed and 126mm I think.  Headsets and stems can still be bought for this frame.  Bottom brackets and cranks won't be any problem.  Brakes?  Maybe need long reach sidepull calipers.

277
Gear Talk / Re: Rohloff hub
« on: May 26, 2011, 02:42:01 pm »
Since maintenance of the chain is the reason you are considering a belt, I'm going to suggest a full chain case.  Europeans, Netherlands, use them on commuting bikes.  These cases enclose the chain, chainring, sprocket and don't allow any water/dust to get onto the chain.  It would reduce oiling a chain to a minimum.  I presume some European websites would be selling these chain cases.  Maybe St. John Street Cycles deals in them like they deal with the Rohloff hub.

278
Gear Talk / Re: Help/Advice for New Bike
« on: May 21, 2011, 06:54:29 pm »
Don't have any suggestions for a specific bike.  But the two you mentioned go for $1850 and $2000.  Frame/fork.  So you could very easily find a somewhat local custom frame maker and have him build you a custom touring frame/fork for the same money.  Might be worth your trouble to find out who is close to you and talk to him.

279
Gear Talk / Re: Gear Chainring
« on: May 15, 2011, 03:30:13 pm »
I have a Co-Motion Mocha Tandem with 26” wheels. How does this effect gearing? Assuming the same gear combination how would it differ from a 700 wheel while climbing up hill? BTW mine has 52-39-30 front and 11-28 rear.

Smaller wheels make the gears easier.  Circumference of the tire.  So with a 26" wheel, the 30x28 low gear will be a little bit easier than a 700C wheel with 30x28.  Small amount easier.  10% easier between 26"x1.0" tire and 700Cx23mm wheel.  Diameter is roughly 24" for the 26" tire and 26.3" diameter for the 700C wheel.  At the high end, the 52x11, the 10% difference would be noticable.  At the low end, the 30x28, the difference may not be noticable.  At the low end you are talking 2 gear inch difference.  That is not much at all.  At the high end the difference is 10 gear inches.  Noticable.

280
Gear Talk / Re: Bike selection for use with trailer
« on: May 11, 2011, 12:56:50 pm »
I know a kid who used a Trek 5200 mid 2000s frame to pull a BOB trailer.  Short tour.  But it worked fine pulling the trailer.  Only problem with the bike was the 30x27 low gear.  The Dura Ace triple crank only allows a 30 tooth inner chainring.

281
A lot of your general touring questions can be answered by reading some of the touring books Adventure Cycling sells.  Libraries may have them too.  They cover the basics and the rest you figure out as you ride.

Netherlands.  I rode in from Germany in the NE corner.  Then along the dam that goes for 30 or more miles along the north coast of the Netherlands.  Bike route on top of the dam/barrier/causeway.  Then south along the coast to Amsterdam and out the south through Rotterdam.  Lot of bike trails from the dam south near the coast.  Officially I think you have to ride on the trails instead of the roads.  Which is a problem if you are trying to get from point A to point B.  The trails aren't direct.  They meander.  Hard to figure out which one goes where.  I stayed in hostels, AYH.  They were scattered so I hit one every 60 miles or so.  I suspect there are cheap motels/hotels/pensiones in most towns.  So camping isn't required.

I rode in August.  Warm.  Windy, windy, windy.  Some rain too.  Good riding weather.  The route I rode was perfectly flat.  I think there are some hills in the eastern areas of the Netherlands.  Its not tough riding terrain.  Towns everywhere, every few miles.

282
Gear Talk / Re: Gear Chainring
« on: May 09, 2011, 01:59:56 pm »
Be careful. If you have too big a difference between the big ring and the granny; if the chain is short enough for the granny gear it may be too short for the big ring. If you see what I mean. I

Not sure how this problem would ever occur if you size the chain correctly.  Wrap the chain around the big ring and big cog and through the rear derailleur.  Just long enough to make this circle with a tiny tiny amound of extra play.  Then the chain is the right length.  If you are in the small chainring and small cog, the rear derailleur may not have enough length to take up all of the slack.  No problem.  Having the chain hang loose on the bottom does not cause any concern.  And using the small chainring and smallest 1-2-3 cogs is not something you should ever do anyway.

283
Gear Talk / Re: Gear Chainring
« on: April 28, 2011, 01:33:23 pm »
I've ridden in the Rockies and only used a 24x23 low gear.  Never needed the 24x28 lowest gear.  It did not hurt me.
Not sure where you rode in the Rockies, but I will say that the route that the OP is talking about has much steeper climbs than anything I saw in the Rockies on the Trans America. 

Slumgullion, Wolf Creek, Red Mountain, Rocky Mountain Park, Rabbit Ears, Molas, Coal Bank, Monarch, Squaw, Berthoud, Vail, Loveland, Mt. Evans.  The point of my comment was to point out that a 24 inner ring gets you a lower gear than a 28 ring.  So with the same cassette, you will have one lower gear with the 24.  Maybe you won't need to use it.  You will be able to get by with the 24 ring and your next to biggest cog.  Nothing is harmed if you carry your biggest cog and don't need it.

284
Gear Talk / Re: Gear Chainring
« on: April 28, 2011, 04:02:04 am »
Since you mention a 28 tooth chainring, I'm guessing you have a road bike triple crankset.  With the inner chainring using a 74mm bolt circle diameter.  You can easily put a 24 tooth chainring on such a crankset.  No matter how big your outer chainrings are, the 24 inner will work perfectly.  Having a 24 instead of a 28 may mean you only have to use your 24x28 gear instead of your 28x32 gear.  So you have one extra low gear in reserve.  No harm done having too low of a gear.  I've ridden in the Rockies and only used a 24x23 low gear.  Never needed the 24x28 lowest gear.  It did not hurt me.

285
http://www.ok-1safety.com/indiv-Product.aspx?catid=1&styleid=7

For visibilty of the rider, this is about the best product you can buy.  OK-1 mesh surveyor's vest.  Fluorescent yellow with reflective stripes.

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