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Search: Posts Made By: mrfish
Showing results 1 to 50 of 555
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Forum: Tandem Cycling
09-28-20, 12:30 PM
Replies: 12
Views: 3,628
Posted By mrfish

Bontrager and Rolf wheels are not the same. ...

Bontrager and Rolf wheels are not the same.

The Bontragers are notorious for hub flanges failing. The spoke holes are a slot with spokes pulling each end of the hole. Cracks propagate from the...
Forum: Tandem Cycling
10-22-13, 04:44 AM
Replies: 29
Views: 8,929
Posted By mrfish

I did not like the idea of spending a large...

I did not like the idea of spending a large amount of money on what is a very basic and simple device, so put together a tandem rack for £30 from 4x trailer axle u-bolts (holds the wooden rack to the...
Forum: Tandem Cycling
04-30-13, 03:55 AM
Replies: 109
Views: 16,904
Posted By mrfish

Personally I would try and eliminate as many...

Personally I would try and eliminate as many unknowns as possible if you are wanting to build one CF tandem. That will keep time manageable and minimise blind alleys. Then on your next tandem you...
Forum: Tandem Cycling
11-12-12, 08:58 AM
Replies: 71
Views: 23,034
Posted By mrfish

I would be surprised if it makes sense to buy a...

I would be surprised if it makes sense to buy a huge car or van specifically to carry a tandem. I have not done the maths, but I drive maybe 1,000-2,000 miles per year with the tandem, so the petrol...
Forum: Tandem Cycling
11-07-12, 07:08 AM
Replies: 7
Views: 1,544
Posted By mrfish

I also bought the reports. The reports were good...

I also bought the reports. The reports were good in that they quantify what we intuitively know already:
- Ceramic bearings are faster, but not so much that they turn a carthorse into a tour...
Forum: Tandem Cycling
10-26-12, 01:12 AM
Replies: 24
Views: 2,470
Posted By mrfish

If you want to run Di2 and are happy with the...

If you want to run Di2 and are happy with the minimum 38t small ring, then you could just unbolt the 30t inner ring, add Di2 and off you go. If you can do all your rides comfortably without using the...
Forum: Tandem Cycling
10-22-12, 10:01 AM
Replies: 11
Views: 4,404
Posted By mrfish

Regarding whether or not Calfees were $4.5k in...

Regarding whether or not Calfees were $4.5k in 2007, see here on the Livingood blog for prices. In fairness $4.5k is about the least you could pay for a Calfee; add couplers, custom sizing and you...
Forum: Tandem Cycling
10-22-12, 09:21 AM
Replies: 129
Views: 29,429
Posted By mrfish

What??? What's not to like about external...

What???

What's not to like about external bbs? Current Shimano and Campag stuff just works, the sealing works, the crank is light and stiff and very simple to maintain. The same can't be said for...
Forum: Tandem Cycling
10-19-12, 05:25 AM
Replies: 11
Views: 4,404
Posted By mrfish

Interesting, fit would probably be about right...

Interesting, fit would probably be about right for us, but the price seems a bit much. Price of today's model is not really the right comparison point as the later models solve issues around...
Forum: Tandem Cycling
10-11-12, 02:13 PM
Replies: 24
Views: 2,665
Posted By mrfish

Correct. It wil mount but the shape is different....

Correct. It wil mount but the shape is different. Close inspection of photos somewhere like competitive cyclist will confirm.
Forum: Tandem Cycling
10-11-12, 01:53 PM
Replies: 14
Views: 9,605
Posted By mrfish

Yes, supposedly. On aluminium frames I can...

Yes, supposedly. On aluminium frames I can understand it as the shell can be distorted from welding. But I find it hard to understand on carbon frames where a precisely machined tube can be bonded...
Forum: Tandem Cycling
10-10-12, 09:29 AM
Replies: 459
Views: 118,524
Posted By mrfish

Now that Bilenky just screams class. mmmm

Now that Bilenky just screams class. mmmm
Forum: Tandem Cycling
10-10-12, 09:24 AM
Replies: 14
Views: 9,605
Posted By mrfish

The Calfee is very nice, but you should mention...

The Calfee is very nice, but you should mention that Cannondale cranks are not exactly cheap. Then using a secondary eccentric and dremeling the chainstay seems odd as the main thing about these...
Forum: Tandem Cycling
10-08-12, 03:04 AM
Replies: 46
Views: 7,611
Posted By mrfish

I found you only get 50% as wet on a tandem as on...

I found you only get 50% as wet on a tandem as on a single bike so no need to bother with mudguards in the summer. The captain gets slightly wet feet (the down tube catches more water than on my...
Forum: Tandem Cycling
09-18-12, 02:37 AM
Replies: 24
Views: 3,110
Posted By mrfish

+1. On the rare occasions I've had bike shops do...

+1. On the rare occasions I've had bike shops do work, they have consistently taken the opportunity to screw something up. It's not that I do everything perfectly, but when it goes wrong I generally...
Forum: Tandem Cycling
09-17-12, 02:31 AM
Replies: 46
Views: 6,079
Posted By mrfish

Interesting that there appear to be no standards...

Interesting that there appear to be no standards for tandem fork testing. When I bought my Alpha Q fork, I recall hearing that their tandem and cyclo cross forks were tested using the same standard,...
Forum: Tandem Cycling
09-12-12, 08:50 AM
Replies: 43
Views: 7,071
Posted By mrfish

Plenty - I live in Switzerland at the top of 5km...

Plenty - I live in Switzerland at the top of 5km climb. (sorry, I couldn't resist - my profile location is outdated)

But to return to logic and facts - Shimano, Campagnolo, SRAM all work hard to...
Forum: Tandem Cycling
08-29-12, 02:59 AM
Replies: 43
Views: 7,071
Posted By mrfish

Dropping a chain is no fun, but IMHO people tend...

Dropping a chain is no fun, but IMHO people tend to use these as a substitute for adjusting their bike properly. And if you start down this route, where to stop? Pie plate on the rear wheel? tyre...
Forum: Tandem Cycling
08-29-12, 02:46 AM
Replies: 92
Views: 10,113
Posted By mrfish

Regarding tyres, I would use the Ultremos if you...

Regarding tyres, I would use the Ultremos if you are looking for lowest weight and ride clean dry roads. I tried the first version Ultremos when they came out and found that UK roads would cut the...
Forum: Tandem Cycling
08-29-12, 02:27 AM
Replies: 14
Views: 1,751
Posted By mrfish

If you want pure road fast tyres GP4000s is...

If you want pure road fast tyres GP4000s is consistently the top tyre in every Tour magazine test. For those not in German-speaking europe, Tour publishes the gold-standard tyre test every 12 months...
Forum: Tandem Cycling
08-27-12, 05:51 AM
Replies: 92
Views: 10,113
Posted By mrfish

Very nice bike. I would recommend some...

Very nice bike.

I would recommend some Thomson seat clamps as they work much better than some lighter weight alternatives I tried. I found that the captain's seatpost needs to be clamped more...
Forum: Tandem Cycling
07-16-12, 11:21 AM
Replies: 11
Views: 2,599
Posted By mrfish

I wouldn't bother. Instead get yourself a...

I wouldn't bother. Instead get yourself a light-ish aluminium rear rim and a disc cover. That will be more aero, and unless you're going uphill at <10mph the weight makes less difference than the...
Forum: Tandem Cycling
05-25-12, 05:46 AM
Replies: 25
Views: 4,651
Posted By mrfish

I thought the caliper / canti brakes on my tandem...

I thought the caliper / canti brakes on my tandem were no good (they would only just lock the wheel if squeezed really hard) until our ex pro racer friend came for a ride on his single bike with us....
Forum: Tandem Cycling
03-26-12, 06:14 PM
Replies: 22
Views: 5,961
Posted By mrfish

Shop bought racks are good, but it's very easy to...

Shop bought racks are good, but it's very easy to build something which looks very similar to Hermes' rack for very little. I looked at modifying a Thule single bike rack by bolting on a longer wheel...
Forum: Tandem Cycling
03-26-12, 04:36 AM
Replies: 30
Views: 5,366
Posted By mrfish

Is it really worth trying to get the stoker...

Is it really worth trying to get the stoker lower?

I would imagine that as long as the stoker is not increasing the hole punched in the air by the captain (assuming the mostly female stokers are...
Forum: Tandem Cycling
03-23-12, 05:03 AM
Replies: 93
Views: 22,352
Posted By mrfish

Ouch! I wish you well on your recovery. My...

Ouch! I wish you well on your recovery.

My experience though is that if a sharp object does cut through a tyre tread, it will probably cut through almost any tyre.

Luckily this is very rare.
Forum: Tandem Cycling
03-19-12, 11:58 AM
Replies: 102
Views: 6,896
Posted By mrfish

P.S. 200mm crankset - How do you get round...

P.S. 200mm crankset - How do you get round corners?
Forum: Tandem Cycling
03-19-12, 11:53 AM
Replies: 102
Views: 6,896
Posted By mrfish

The aluminium frame on the tandem is neither here...

The aluminium frame on the tandem is neither here nor there. This is not an opinion, it's physics: Climbing speed comes from having 2 riders who produce decent power while at reasonable weights:
...
Forum: Tandem Cycling
03-15-12, 06:46 AM
Replies: 70
Views: 7,201
Posted By mrfish

The angle of the stem makes no difference to the...

The angle of the stem makes no difference to the load which the captain's seatpost 'sees' where it is clamped into the frame, whether it clamps at the top, bottom or somewhere in between. If you...
Forum: Tandem Cycling
03-15-12, 06:08 AM
Replies: 92
Views: 10,113
Posted By mrfish

I think avoiding an eccentric is a great idea....

I think avoiding an eccentric is a great idea. Contrary to other posters I don't see changes in the bike length as a big issue at all. In my experience the eccentric doesn't need frequent adjustment...
Forum: Tandem Cycling
03-06-12, 09:28 AM
Replies: 92
Views: 10,113
Posted By mrfish

Please keep us updated - I think this sounds like...

Please keep us updated - I think this sounds like a really cool build, and I like the idea that you could swap the pipes to improve stiffness or ride. Re-setting the RD tension is no big deal, since...
Forum: Tandem Cycling
03-06-12, 08:28 AM
Replies: 17
Views: 1,579
Posted By mrfish

I think there were much simpler and cheaper...

I think there were much simpler and cheaper solutions than ditching the Campy altogether - use a shiftmate. But since you're already shimanoed-up, I would get 10 speed shifters and cassettes. Then...
Forum: Tandem Cycling
02-09-12, 10:30 AM
Replies: 29
Views: 4,791
Posted By mrfish

Well I've ridden both an Edge 2.0 on my Parlee Z4...

Well I've ridden both an Edge 2.0 on my Parlee Z4 a few years back and tapered fork on my Z5SL now. Obviously the frame is also different, but the difference in the handling is very very small.
...
Forum: Tandem Cycling
02-09-12, 10:14 AM
Replies: 29
Views: 2,351
Posted By mrfish

Our max was 54mph down the Old Bristol Road into...

Our max was 54mph down the Old Bristol Road into Wells, Somerset while on a sportif. I think we overtook 5 or 6 roadies like they were standing still ;-D That was without pedalling - we just hit the...
Forum: Tandem Cycling
02-09-12, 09:52 AM
Replies: 84
Views: 9,326
Posted By mrfish

I've done the red bolt thing on my tandem, but...

I've done the red bolt thing on my tandem, but mainly to get rid of unnecessary steel bolts which would soon rust and because I like red. I've not measured the weight saving, but it probably cost...
Forum: Tandem Cycling
11-15-11, 12:29 PM
Replies: 9
Views: 862
Posted By mrfish

Well, we live approximately 300m from Herne Hill...

Well, we live approximately 300m from Herne Hill velodrome, but we have not yet ridden the tandem there. Riding the track on a 'casual' basis isn't somethign I would do unless doing an organised...
Forum: Tandem Cycling
09-13-11, 04:11 PM
Replies: 20
Views: 1,310
Posted By mrfish

+1 on all the above - we stand to give the bottom...

+1 on all the above - we stand to give the bottom a break, to get up hills without shifting into the granny ring and losing momentum and occasionally to sprint on the flat.

More recently we...
Forum: Tandem Cycling
09-13-11, 03:48 PM
Replies: 8
Views: 1,008
Posted By mrfish

Nice bike. But there are lighter, more aero...

Nice bike.

But there are lighter, more aero and stiffer wheels out there. Or did you get them to get aluminium brake sufaces with good aero?

If new I would personally have chosen a different...
Forum: Tandem Cycling
09-04-11, 02:21 PM
Replies: 1,509
Views: 668,141
Posted By mrfish

Us on the Tour of Wessex Day 1. We did the medium...

Us on the Tour of Wessex Day 1. We did the medium route, which was 76 miles with a mix of flats round Glastonbury Tor (in the background in second picture) and a tough stretch up Cheddar Gorge (third...
Forum: Tandem Cycling
04-14-11, 06:42 AM
Replies: 12
Views: 866
Posted By mrfish

Please don't throw away a tyre after one...

Please don't throw away a tyre after one puncture. If it's a minor puncture from a thorn or glass rather than a 1cm cut this seems a bit silly. This isn't formula one, and it seems highly...
Forum: Tandem Cycling
04-11-11, 04:40 AM
Replies: 31
Views: 6,431
Posted By mrfish

Regarding batteries and wireless, the issue is...

Regarding batteries and wireless, the issue is that servos under load require high peak currents. So likely the FD and RD work best running from one battery. Also this allows the brain (in the FD in...
Forum: Tandem Cycling
04-01-11, 05:14 PM
Replies: 31
Views: 6,431
Posted By mrfish

Re. the linked front and rear shifting you need...

Re. the linked front and rear shifting you need to talk to Fairwheel bikes. But it's not a production system.

I think Fairwheel would mastermind building you a very good tandem if you asked Jason...
Forum: Tandem Cycling
03-30-11, 05:37 PM
Replies: 39
Views: 15,515
Posted By mrfish

Well, all of those solutions work well, but if...

Well, all of those solutions work well, but if you already have roof bars and baulk at paying $300 for a few bits of pressed steel and aluminum it's very easy to make your own wooden rack.

Just...
Forum: Tandem Cycling
03-27-11, 03:44 PM
Replies: 8
Views: 657
Posted By mrfish

A couple of thoughts - why do you think the lever...

A couple of thoughts - why do you think the lever shape will help your elbows? I'd try a quick ride on a demo bike before you part with $$s

Regarding the chain, the 10 speed is as strong as a 9...
Forum: Tandem Cycling
03-27-11, 03:35 PM
Replies: 31
Views: 6,431
Posted By mrfish

Not tried it on a tandem, but I did try a Trek...

Not tried it on a tandem, but I did try a Trek Di2 on a trainer while on a business trip in Sydney. It shifted just like a bike should shift. Yes the chain did not rub, and the drivetrain wouldn't...
Forum: Tandem Cycling
03-21-11, 08:25 AM
Replies: 29
Views: 3,790
Posted By mrfish

I have a Trek T2000, which has a notoriously bad...

I have a Trek T2000, which has a notoriously bad rear brake from stock and is pretty similar to a Galaxy.

The good news is that after some fine tuning my single bike buddies report that the...
Forum: Tandem Cycling
10-19-10, 05:46 AM
Replies: 14
Views: 2,903
Posted By mrfish

Yes Not quite - there is considerable...

Yes



Not quite - there is considerable confusion around this. Rotor rings have their long axis aligned with the crank. This means that the short axis is at 90 degrees to the crank. So when the...
Forum: Tandem Cycling
07-20-10, 04:17 AM
Replies: 22
Views: 2,313
Posted By mrfish

I'm not seeing an inner of the double chainrings...

I'm not seeing an inner of the double chainrings on that Calfee. It looks like it just has a 50t ring and a wide ratio rear cassette. Are the pictures misleading, or is it set up for riding in...
Forum: Tandem Cycling
06-29-10, 06:15 AM
Replies: 1,509
Views: 668,141
Posted By mrfish

Nice! I thought for a moment you had the Schleck...

Nice! I thought for a moment you had the Schleck brothers on a tandem, but then realised you've got Cancellara on the back to drive things along.
Forum: Tandem Cycling
06-14-10, 12:42 PM
Replies: 46
Views: 4,539
Posted By mrfish

Regarding efficiency of the Rohloff, the question...

Regarding efficiency of the Rohloff, the question is who uses their derailleur gears optimally? Most people don't because it involves double shifts all the time. And who avoids cross chaining gears...
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