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Search: Posts Made By: qspencer
Showing results 1 to 50 of 117
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07-08-19, 11:14 AM
Replies: 11
Views: 3,116
Posted By qspencer

I agree with this. We got started on tandems when...

I agree with this. We got started on tandems when our kids got too big for the trailer we pulled them in when they were babies. Now my kids are teenagers. We've done a fair bit of riding with them on...
07-05-18, 12:33 PM
Replies: 2
Views: 852
Posted By qspencer

Unusual tandems

I recently returned from a trip to Xi'an, China. While there, we visited the old city wall, which is in surprisingly good condition and 14km in length. The top of the well is very wide and there are...
01-26-18, 01:54 PM
Replies: 13
Views: 1,938
Posted By qspencer

Check out the tandems offered by online French...

Check out the tandems offered by online French retailer CR2V (http://www.cr2v.com/la-boutique/tandem/tandem-route.html). They are surprisingly affordable, which is how I found them when I was looking...
01-16-18, 11:03 AM
Replies: 12
Views: 1,444
Posted By qspencer

Something that fits well should be a priority, as...

Something that fits well should be a priority, as others have suggested.

I also agree that folding/disassembling tandems could be useful for your application, but as a former owner of a Bike...
10-28-17, 08:14 PM
Replies: 13
Views: 2,143
Posted By qspencer

We've been here 3 years. There are a handful of...

We've been here 3 years. There are a handful of road riders now, though still fewer than other places I've lived. Drivers are generally good; the roaming dogs are far more annoying. Some of the...
10-25-17, 07:07 AM
Replies: 13
Views: 2,143
Posted By qspencer

I did this regularly last year to pick up one of...

I did this regularly last year to pick up one of my kids from middle school. She felt self conscious about it at first but eventually realized a lot of kids who saw the bike thought it was cool....
10-09-17, 01:39 PM
Replies: 26
Views: 3,073
Posted By qspencer

Is it 10-speed or 11-speed 105 group? I would say...

Is it 10-speed or 11-speed 105 group? I would say it may be a worthwhile upgrade if you're on 10 speed 105, but if you're already on 11 speed the primary benefit may be weight savings. I have 11...
10-09-17, 12:40 PM
Replies: 21
Views: 1,995
Posted By qspencer

I was very late to the party in giving up my toe...

I was very late to the party in giving up my toe clips when I finally put SPD pedals on my road bike about 10 years ago. I'm a fairly casual rider who hasn't raced in decades and rarely has time for...
07-20-17, 11:40 AM
Replies: 80
Views: 12,219
Posted By qspencer

I had avoided this because newer SRAM road...

I had avoided this because newer SRAM road shifters do not have trim clicks for the front derailleur, with the idea that the yaw derailleur makes them unnecessary. The ability of the yaw derailleur...
07-19-17, 08:35 PM
Replies: 80
Views: 12,219
Posted By qspencer

I have now built the tandem that I was referring...

I have now built the tandem that I was referring to when I started this thread. I've got SRAM 2x11 road shifters and yaw front derailleur. On the Sugino triple cranks, I have a 30t inner chainring...
07-06-17, 10:30 AM
Replies: 12
Views: 2,401
Posted By qspencer

I have a right side drive tandem. My goal was to...

I have a right side drive tandem. My goal was to get a big differential between front and rear cranks, so I put a 180 mm SRAM crank in front with a 165 mm crank in rear. I first bought a Shimano...
06-06-17, 10:25 AM
Replies: 21
Views: 1,549
Posted By qspencer

My son (also 10) found a small set of cycling...

My son (also 10) found a small set of cycling shoes on clearance at REI a couple of years ago and talked us into buying it and putting SPD pedals on his bike. We've now gone down the slippery slope...
06-05-17, 11:20 AM
Replies: 21
Views: 1,549
Posted By qspencer

We used crank shorteners on one tandem for a...

We used crank shorteners on one tandem for a while. They solve the problem but with the downside of a 2 cm increase in Q factor, which is probably even more noticeable to short legs. For a while I...
05-25-17, 01:23 PM
Replies: 7
Views: 3,137
Posted By qspencer

I second that. When I was younger I noticed that...

I second that. When I was younger I noticed that the saddle that I had put many thousands of miles on had twisted its nose a couple of mm to one side. I tried to adjust it back so it was "straight"...
05-19-17, 10:17 AM
Replies: 14
Views: 1,581
Posted By qspencer

I got a Garmin Varia this year and I really love...

I got a Garmin Varia this year and I really love it. I think it solves the situational awareness problem better than my handlebar mirror ever did. I've got it mounted on the back of a rear luggage...
05-11-17, 02:03 PM
Replies: 28
Views: 4,962
Posted By qspencer

We've started riding the tandems on dirt roads a...

We've started riding the tandems on dirt roads a lot more. (That includes picking up my daughter from middle school, which gets a lot of curious looks from people). The kids started complaining about...
05-03-17, 07:36 AM
Replies: 2
Views: 1,264
Posted By qspencer

I believe KHS tandems in general offer a great...

I believe KHS tandems in general offer a great value for the money, but I'd probably choose the Cannondale too (if it fits).

I've converted a flat-bar tandem to drop bar. My wife prefers drop...
05-01-17, 08:29 AM
Replies: 29
Views: 3,914
Posted By qspencer

I assume this is aluminum. I broke an aluminum...

I assume this is aluminum. I broke an aluminum frame once, but I hadn't been inspecting the frame to see what the tube looked like before it broke. I think aluminum frames are designed better now...
04-28-17, 05:08 PM
Replies: 10
Views: 1,412
Posted By qspencer

I thought I was the only tandem rider in Lubbock!...

I thought I was the only tandem rider in Lubbock! I'll be listing an old Raleigh tandem next month. I'm hoping there are buyers around here.
04-27-17, 07:56 PM
Replies: 10
Views: 1,412
Posted By qspencer

Most of the larger frame Cannondales would...

Most of the larger frame Cannondales would probably fit you OK. You'd probably be looking at one over 10-15 years old to get the price under $2K. The best tandem I've seen that can be bought new for...
04-24-17, 12:28 PM
Replies: 38
Views: 5,776
Posted By qspencer

The Bushnell looks like a great solution. I ended...

The Bushnell looks like a great solution. I ended up finding a much more economical Cannondale eccentric on eBay so I'm going to give that a try and see what I think.
04-22-17, 08:18 PM
Replies: 38
Views: 5,776
Posted By qspencer

OK, after some fun diversions about hub standards...

OK, after some fun diversions about hub standards and Santana's design philosophy, I'm going to drag this thread back to the original subject: my custom tandem design. The drawings Waltly has been...
04-20-17, 10:32 PM
Replies: 80
Views: 12,219
Posted By qspencer

I suspect you're right. I couldn't find it on...

I suspect you're right. I couldn't find it on SRAM's site, but I found another source claiming total capacity on SRAM mid-cage derailleurs of 37. A 50/34 with 11-32 would need a total capacity of 37,...
04-20-17, 01:42 PM
Replies: 80
Views: 12,219
Posted By qspencer

That's also something I'm considering. I think...

That's also something I'm considering. I think 50/34 with 11-36 is probably sufficient, but I'm uncertain whether that will work with SRAM 2x11. SRAM's documentation claims their 11-36 cassette is...
04-20-17, 11:27 AM
Replies: 80
Views: 12,219
Posted By qspencer

Double chainring options

This is related to the recent separate thread I started about getting a custom frame built. It will be piloted by my wife, who has a strong preference for SRAM, which means 2x11 gearing. A 34-32 low...
04-14-17, 11:53 AM
Replies: 38
Views: 5,776
Posted By qspencer

As far as I know they just build frames. I think...

As far as I know they just build frames. I think they got into the business building frames to order for other brands and are now marketing custom frames direct to consumer.

For more information...
04-10-17, 11:32 AM
Replies: 38
Views: 5,776
Posted By qspencer

What crank will you be using? I'm trying to...

What crank will you be using? I'm trying to figure out whether the Boost width is going to work with normal road-width cranks, or whether I need something wider. The budget option is Sugino XD, which...
04-10-17, 11:29 AM
Replies: 38
Views: 5,776
Posted By qspencer

The periscope is what I should have bought 7...

The periscope is what I should have bought 7 years ago instead of a Bike Friday. It served its purpose, but ultimately I found the frame a little flexy and the fit for me was not ideal (I bought it...
04-09-17, 01:55 PM
Replies: 38
Views: 5,776
Posted By qspencer

Thank you, that's quite helpful. Belt drive is...

Thank you, that's quite helpful. Belt drive is probably more than I need to spend at this point, but it's worth designing for upgradability. My kids are clearly on their way to being tall but they...
04-08-17, 08:51 PM
Replies: 38
Views: 5,776
Posted By qspencer

Custom Tandem Design

We use our tandems for riding with our kids. I want to set my wife up with a better tandem to pilot, but I'm trying to keep costs down because I don't know how many more years we can keep the kids...
03-31-17, 02:29 PM
Replies: 13
Views: 5,922
Posted By qspencer

It's not a camera, but I love my Garmin Varia...

It's not a camera, but I love my Garmin Varia (integrated light and rearview radar), and I find it even more useful on a tandem than singles. Navigating traffic (especially left turns) sometimes...
10-27-16, 04:29 PM
Replies: 4
Views: 1,145
Posted By qspencer

XACD? I've done some research on them and...

XACD?

I've done some research on them and they seem reputable. I actually went as far as getting a price quote from them a couple of years ago for a tandem frame. I'm still thinking about it. I'd...
10-13-16, 03:29 PM
Replies: 13
Views: 1,691
Posted By qspencer

I once cold set an old single frame from 125 mm...

I once cold set an old single frame from 125 mm to 130. I had read Sheldon Brown's process, but what I ultimately did was even easier: with a little padding to protect the paint, I put a car jack...
09-22-16, 10:37 AM
Replies: 8
Views: 1,566
Posted By qspencer

I think you should be able to rotate it to the...

I think you should be able to rotate it to the bottom right instead of the top right and gain a little height. Adding a link would require the eccentric to be able to move an additional half inch to...
09-16-16, 09:43 AM
Replies: 12
Views: 1,404
Posted By qspencer

Agreed. The Italian BB standard is one that...

Agreed. The Italian BB standard is one that should have died a long time ago. Both sides thread in the standard way (clockwise to tighten) in a situation where the drive side should be reverse...
07-26-16, 02:27 PM
Replies: 7
Views: 1,166
Posted By qspencer

I found that a variety of hand positions does...

I found that a variety of hand positions does make a big difference. My first tandem was a flat bar Bike Friday, and I quickly found that having one hand position limited how far I could ride on it....
06-24-16, 12:03 PM
Replies: 26
Views: 2,243
Posted By qspencer

We used to sometimes take the kids to school on...

We used to sometimes take the kids to school on our tandems, about 4 miles each way. After doing it a couple of times, I noticed that we were faster with no stokers than with the kids on them.
06-10-16, 02:54 PM
Replies: 16
Views: 1,618
Posted By qspencer

I recently built a single cyclocross bike, for...

I recently built a single cyclocross bike, for which I bought a Mavic MTB wheel. The aluminum freehub body came with a sticker warning against the use of cassettes with individual cogs (as opposed to...
04-25-16, 09:23 PM
Replies: 18
Views: 4,761
Posted By qspencer

Over the last couple of years I've followed a few...

Over the last couple of years I've followed a few of those tandems on eBay and bid on them a couple of times but never won. My recollection is that they often sell for somewhere between $2500 and...
04-18-16, 08:49 AM
Replies: 18
Views: 3,104
Posted By qspencer

I've been riding road bikes since downtube...

I've been riding road bikes since downtube shifters, but my wife is relatively new to road cycling. She has tried Shimano and SRAM and finds SRAM much more intuitive. The analogy to Apple products is...
04-11-16, 09:41 AM
Replies: 12
Views: 1,193
Posted By qspencer

What length cranks are the kids using?

What length cranks are the kids using?
04-11-16, 09:35 AM
Replies: 14
Views: 3,055
Posted By qspencer

It probably depends on how much use the frame has...

It probably depends on how much use the frame has had. I'm not a materials expert, but I do know that aluminum has finite fatigue life. I bought a used aluminum frame in the late 1980s and broke the...
03-28-16, 10:22 AM
Replies: 12
Views: 1,598
Posted By qspencer

Last year and bought the XPeria 5200...

Last year and bought the XPeria 5200 (http://www.x-peria.fr/index.php/route-road/48-tandem-route-road-x-peria-5200-trekking-touring-cadre) frame from CR2V (http://www.cr2v.com/) in France. They...
03-28-16, 10:09 AM
Replies: 12
Views: 1,778
Posted By qspencer

I had a Bike Friday for 5 years and sold it last...

I had a Bike Friday for 5 years and sold it last year. When I bought it, the primary motivations were transportability and the ability to fit very short stokers. Comfort was fine, almost too good: as...
03-22-16, 01:22 PM
Replies: 12
Views: 1,525
Posted By qspencer

I agree the smaller frame would be too small for...

I agree the smaller frame would be too small for you. The primary concern is top tube length, which determines reach to the handlebars. I'm close to your size and all of my bikes have top tube...
03-11-16, 12:20 PM
Replies: 17
Views: 5,890
Posted By qspencer

While cantilever brakes work well and are still...

While cantilever brakes work well and are still used by some tandem makers, everything else about it is very old technology. I'm guessing that's a 6 speed freewheel. The odd front chainring sizing...
03-10-16, 09:58 AM
Replies: 6
Views: 4,696
Posted By qspencer

To me the uptube design looks like a way to get...

To me the uptube design looks like a way to get the same structural rigidity with less tubing, so I've always wondered what the rationale is for the long lateral tube that has been standard for so...
03-08-16, 03:12 PM
Replies: 27
Views: 3,433
Posted By qspencer

In my mind, the price benchmark for a quality...

In my mind, the price benchmark for a quality entry-level tandem that's not just a toy is the Cannondale Road Tandem 2, available from REI for $3300. It comes with disc brakes and a 3x10 Shimano 105...
01-12-16, 05:18 PM
Replies: 18
Views: 2,648
Posted By qspencer

I would look at the measurements of the XL/S that...

I would look at the measurements of the XL/S that Cannondale makes. I think a 5'1" stoker would fit with no problems, the question is whether the front end would be long enough for 6'6" captain.
12-20-15, 11:03 PM
Replies: 7
Views: 1,546
Posted By qspencer

I have a MTB front derailleur on it. The shifter...

I have a MTB front derailleur on it. The shifter is a triple, but it's single side drive, so I'm only shifting between two chainrings right now. The front shifting setup is the one thing that still...
Showing results 1 to 50 of 117
 


 
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