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Search: Posts Made By: OneIsAllYouNeed
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11-03-20, 01:48 PM
Replies: 2
Views: 341
Posted By OneIsAllYouNeed

The Niner Biocentric fits somewhat obscure frames...

The Niner Biocentric fits somewhat obscure frames with 55mm shells. The Bushnell fits 54mm shells. Bushnell offers (offered?) a shim for 55 or 57mm bottom bracket shells. It's worth noting that...
10-30-20, 10:56 PM
Replies: 3
Views: 412
Posted By OneIsAllYouNeed

Most (all?) high end tandems have an eccentric...

Most (all?) high end tandems have an eccentric front bottom bracket to tension the timing chain. Lower end tandems often use an idler pulley on the boom tube. It sounds like youíre looking for a high...
10-29-20, 08:20 PM
Replies: 17
Views: 3,261
Posted By OneIsAllYouNeed

Our tandem has a 145mm quick release rear hub,...

Our tandem has a 145mm quick release rear hub, like yours, and we've used it successfully on both trainers that we currently own.

One trainer is the very popular, non-smart, wheel-on Cyclops Fluid...
10-28-20, 01:13 PM
Replies: 18
Views: 1,873
Posted By OneIsAllYouNeed

142mm and 148mm thru axle are really common on...

142mm and 148mm thru axle are really common on new tandems. 148mm seems to be more popular for road, gravel, and MTB tandems.

In spite of the nominal dimensions, 148mm thru axle hubs are 4mm...
10-28-20, 12:52 PM
Replies: 9
Views: 855
Posted By OneIsAllYouNeed

I've used R+E Cycles for a steel tandem fork and...

I've used R+E Cycles for a steel tandem fork and Cycles Chinook for a titanium tandem fork. Both are exactly what I wanted.
10-24-20, 10:22 PM
Replies: 14
Views: 977
Posted By OneIsAllYouNeed

There's a factor of 1g (9.8m/s^2) missing to...

There's a factor of 1g (9.8m/s^2) missing to translate from mass*millimeters to N*m
Here's are two examples you can paste into the google search bar:...
10-24-20, 07:46 PM
Replies: 14
Views: 977
Posted By OneIsAllYouNeed

To be fair, Iíd opt for using unmodified BMX...

To be fair, Iíd opt for using unmodified BMX cranks for all the middle stokers, too. Keeping all the chains/belts on the right side is best for overall efficiency, reducing bottom bracket wear, and...
10-24-20, 05:51 PM
Replies: 14
Views: 977
Posted By OneIsAllYouNeed

I personally like a wider and closer set of gears...

I personally like a wider and closer set of gears than you can in a 1x12. There are a handful of 2x11 drivetrains that can achieve about 650% overall gear range and reasonable jumps between gears....
10-23-20, 06:20 AM
Replies: 7
Views: 732
Posted By OneIsAllYouNeed

Weíve used a handful of brake setups over the...

Weíve used a handful of brake setups over the years on our tandems. Iíll donít recall the exact details on some of the older ones, but hereís my rankings...
Worst: Cantilever brakes in general;...
10-21-20, 07:47 PM
Replies: 5
Views: 580
Posted By OneIsAllYouNeed

Full coverage fenders are the best investment for...

Full coverage fenders are the best investment for staying dry. On a tandem, adding a mud flap to the bottom of the front fender helps keep the stokerís feet dry.
Some fenders have a lot of hardware...
10-19-20, 08:30 AM
Replies: 10
Views: 801
Posted By OneIsAllYouNeed

If you're looking to make your bike faster, start...

If you're looking to make your bike faster, start with nice, supple tires that are the right width for your weight and your roads. Cycles Chinook has a handy tire sizing tool to help with that:...
10-11-20, 09:02 PM
Replies: 7
Views: 785
Posted By OneIsAllYouNeed

It sounds like a 700c x 37 or 38mm tire would be...

It sounds like a 700c x 37 or 38mm tire would be good for your next pair. The Panaracer "Gravelking SS Plus" or "Graveling Plus" would be good for what you've described. The "durable" versions of...
10-11-20, 04:03 PM
Replies: 7
Views: 785
Posted By OneIsAllYouNeed

There are three popular rim/tire sizes and youíve...

There are three popular rim/tire sizes and youíve presented some references to two different ones.
559mm = 26 inch
584mm = 27.5 inch = 650b
622mm = 29 inch =700c
Note that the first number is...
10-07-20, 01:06 PM
Replies: 19
Views: 1,300
Posted By OneIsAllYouNeed

I build my fair share of tandem wheels. 32H is...

I build my fair share of tandem wheels. 32H is more common than 36H; 40H is becoming very rare and 48H is passť. I like vertically stiff rims and I prefer wider rims. I generally go above 32 spokes...
09-29-20, 01:40 PM
Replies: 24
Views: 1,911
Posted By OneIsAllYouNeed

Any custom tandem builder should be able to put...

Any custom tandem builder should be able to put the couplers where you want them. A good builder will also ensure that your frame fits you and fits within whatever space constraints you'll have.
In...
09-08-20, 01:08 PM
Replies: 54
Views: 4,520
Posted By OneIsAllYouNeed

Ghost shifting due to frame flex will likely be...

Ghost shifting due to frame flex will likely be worse with a cable-actuated rear derailleur. Have you tried micro-trimming the individual gears? Most likely, they'll need to be trimmed outboard...
09-03-20, 01:16 PM
Replies: 6
Views: 719
Posted By OneIsAllYouNeed

A custom-made toptube mounted stem is certainly...

A custom-made toptube mounted stem is certainly one option for you. I believe R+E Cycles or Cycles Chinook would make one. Assuming the top tube is round, it should be fairly straightforward.

The...
08-11-20, 12:53 PM
Replies: 18
Views: 2,113
Posted By OneIsAllYouNeed

Joeruge, your older Cannondale can use modern...

Joeruge, your older Cannondale can use modern "Boost" spaced rear hubs with QR end caps. There are some 141mm QR hubs, too. The DT 350 Hybrid would be a good candidate rear hub to keep that frame...
08-10-20, 11:58 AM
Replies: 18
Views: 2,113
Posted By OneIsAllYouNeed

Fitting a 6ft stoker comfortably to the rear of a...

Fitting a 6ft stoker comfortably to the rear of a stock tandem is a challenge. The closest stock tandem to working would be a Cannondale Road Tandem J/M (Jumbo/medium) or Cannondale Tandem 29 L/G....
08-10-20, 11:39 AM
Replies: 14
Views: 1,329
Posted By OneIsAllYouNeed

Most likely, you're feeling the results of...

Most likely, you're feeling the results of chainstay flex. In your lowest gear combination, the chain tension is highest, so you're most likely to bend the chainstays. With eTap, you can microtrim...
06-30-20, 12:28 PM
Replies: 1
Views: 346
Posted By OneIsAllYouNeed

Here's some clean brake hose routing on a coupled...

Here's some clean brake hose routing on a coupled tandem. The hose runs under the top tube, under the left seatstay, then curves gently up to the seatstay-mounted brake caliper....
06-19-20, 08:09 PM
Replies: 58
Views: 9,215
Posted By OneIsAllYouNeed

This is my Chinook travel gravel family tandem....

This is my Chinook travel gravel family tandem. In one photo, it's set up for my 5'3" wife as stoker with a Weehoo trailer in tow. In the other, it's set up for my 3'6" 5 year old stoking.
...
06-13-20, 09:57 PM
Replies: 2
Views: 479
Posted By OneIsAllYouNeed

Sounds like (1) the cable slipped in the cable...

Sounds like (1) the cable slipped in the cable anchor bolt or (2) a cable housing ferrule wasnít seated in a housing stop until you pulled the brake lever. Either way, just loosen the cable anchor...
06-12-20, 10:32 PM
Replies: 5
Views: 772
Posted By OneIsAllYouNeed

You have a Shimano 8/9/10-speed driver. There are...

You have a Shimano 8/9/10-speed driver. There are only a few 12-speed cassettes compatible with it:
Garabaruk 11-52
Sram NX 11-50
Sunrace 11-50 and 11-51
Those cassettes will only work well in a...
05-20-20, 06:29 AM
Replies: 13
Views: 2,056
Posted By OneIsAllYouNeed

I donít think anyone offers a stock tandem-rated...

I donít think anyone offers a stock tandem-rated fork with 12mm thru axle. You might inquire with the folks who are making tandem forks ó R+E, Co-Motion, Chinook ó if they would build you one.
...
05-11-20, 08:01 AM
Replies: 12
Views: 1,279
Posted By OneIsAllYouNeed

Your creaking could be caused by insufficient...

Your creaking could be caused by insufficient bearing preload. Take out a crankarm and add a BB30 spacer or wave washer. Be sure to respect the Lightning torque spec on the spindle. I like to use...
05-11-20, 07:28 AM
Replies: 12
Views: 1,705
Posted By OneIsAllYouNeed

The crankarms on Doug's bike are Sram Force 22...

The crankarms on Doug's bike are Sram Force 22 BB30. They're compatible with many aftermarket 3-bolt spiders, including 76, 94, 104, 110, and 130bcd options. Sram's new 107bcd rings are meant for AXS...
05-11-20, 07:16 AM
Replies: 12
Views: 1,705
Posted By OneIsAllYouNeed

Howdy Doug. Beautiful bike. Looking forward to...

Howdy Doug. Beautiful bike. Looking forward to seeing more pictures of it out adventuring.

The Veer belt is similar design to the original Gates Carbon Drive from the early 2000s. The beltrings...
04-22-20, 08:39 AM
Replies: 17
Views: 2,192
Posted By OneIsAllYouNeed

You can definitely use crank length differential...

You can definitely use crank length differential to sort out cadence mismatch. Your intuition is correct that shortening your stoker's cranks would let her comfortably spin -- and make power -- at...
04-21-20, 07:02 AM
Replies: 12
Views: 1,560
Posted By OneIsAllYouNeed

Jagwire Mountain Pro Hose with fit kit HFA210 or...

Jagwire Mountain Pro Hose with fit kit HFA210 or HFA213 work on 11-speed eTap HRD brakes and AXS HRD brakes. The double-ended hose is 3000mm long, which is suitable for the rear brake on most tandems...
04-09-20, 09:39 AM
Replies: 11
Views: 408
Posted By OneIsAllYouNeed

I've also used a wider rim to improve vertical...

I've also used a wider rim to improve vertical clearance from fork crown or seat stay bridge. [Off topic: it was on my winter fixed commuter with studded tires. I couldn't exactly run out for a...
04-08-20, 10:59 AM
Replies: 17
Views: 1,209
Posted By OneIsAllYouNeed

QBP and BWP have inventory of many Velocity rims....

QBP and BWP have inventory of many Velocity rims. I imagine many LBS have a random smattering.

The OP didn't seem overly concerned about long descents. That said, the Cliffhanger is a heavy rim...
04-08-20, 08:49 AM
Replies: 17
Views: 1,209
Posted By OneIsAllYouNeed

Here's a Velocity Blunt SS rim with a Conti...

Here's a Velocity Blunt SS rim with a Conti GP4000S II 28mm tire. The Blunt SS has the same outer width (30mm) as the Cliffhanger, and is slightly wider internally (26.6 vs 25mm). ...
04-08-20, 08:00 AM
Replies: 17
Views: 1,209
Posted By OneIsAllYouNeed

Spiraling in on the solution here. For...

Spiraling in on the solution here. For perceivable aerodynamic improvement, I'd recommend the Velocity Cliffhanger, 32 bladed spokes (I build with Sapim CX-Sprint for most of my tandem wheels), and a...
04-06-20, 06:15 PM
Replies: 17
Views: 1,209
Posted By OneIsAllYouNeed

How come you want an alloy rim so deep? If youíre...

How come you want an alloy rim so deep? If youíre going for aerodynamic drag reduction, youíre better off matching the width of your tire to the rim. The DT RR511, Kinlin XR31T, HED Belgium +,...
04-02-20, 07:22 AM
Replies: 8
Views: 1,452
Posted By OneIsAllYouNeed

Wide, supple tires are definitely awesome on...

Wide, supple tires are definitely awesome on tandems. Just be sure that you respect their pressure limits. Panaracer Pari Moto 650b x 42mm tires were an absolute game changer for us -- even compared...
03-25-20, 02:52 PM
Replies: 18
Views: 3,772
Posted By OneIsAllYouNeed

Bike shops have been deemed essential most...

Bike shops have been deemed essential most places. Most are still open and practicing social distancing and lots of cleaning. Manufacturers are more variable at the moment. One or two person shops...
03-01-20, 07:55 PM
Replies: 35
Views: 2,979
Posted By OneIsAllYouNeed

I'd recommend starting with a good professional...

I'd recommend starting with a good professional bike fit. There are lots of ways to adjust grip position, but I think you first need to find out what your ideal position is. Neck issues, especially,...
02-20-20, 09:41 AM
Replies: 18
Views: 768
Posted By OneIsAllYouNeed

I rode the 180k D2R2 route with a few friends...

I rode the 180k D2R2 route with a few friends back in 2007. Due to scheduling conflicts, our ride was a few weeks or months away from the official event (which was still a fairly small affair). We...
01-27-20, 01:38 PM
Replies: 5
Views: 950
Posted By OneIsAllYouNeed

RoadLink and extended cages solve different --...

RoadLink and extended cages solve different -- but related -- problems. The RoadLink allows the upper pulley of the rear derailleur to clear a larger cog. An extended derailleur cage gives your rear...
11-27-19, 11:48 AM
Replies: 18
Views: 2,729
Posted By OneIsAllYouNeed

For your husband and son, some tandems will work...

For your husband and son, some tandems will work well, while others will work poorly.
FIT
The front of the bike must fit your husband similar to his road bike. It's okay if he needs a slightly...
11-27-19, 11:14 AM
Replies: 34
Views: 5,856
Posted By OneIsAllYouNeed

Why not make/buy aero covers for the 36 spoke...

Why not make/buy aero covers for the 36 spoke wheels?
11-27-19, 11:14 AM
Replies: 6
Views: 1,070
Posted By OneIsAllYouNeed

That's a home-made tandem. It most likely started...

That's a home-made tandem. It most likely started as two department store bikes. Someone joined the two frames and added the boom tube. Tandems like this tend to be laterally flexible to the point of...
11-25-19, 08:29 AM
Replies: 7
Views: 1,474
Posted By OneIsAllYouNeed

Rolf Prima (made by White Industries) and...

Rolf Prima (made by White Industries) and Spinergy have sold quite a few 24h tandem wheels. I'm sure there are some servicable hubs kicking around long after the rims or spokes gave way. Chris King...
11-01-19, 09:08 AM
Replies: 72
Views: 4,580
Posted By OneIsAllYouNeed

It doesn't have to be hard to open a beer bottle...

It doesn't have to be hard to open a beer bottle while riding. Here's one of many practical solutions:...
10-30-19, 12:36 PM
Replies: 10
Views: 2,574
Posted By OneIsAllYouNeed

As a fellow parent of a kindergartner, I think...

As a fellow parent of a kindergartner, I think you've missed the box bike phase. At our school pickup and dropoff, the only kids in enclosed bike trailers are pre-schoolers. I can't see a kid much...
10-29-19, 05:22 PM
Replies: 25
Views: 9,084
Posted By OneIsAllYouNeed

Just donít let her see a titanium bike thatís...

Just donít let her see a titanium bike thatís anodized purple.
10-25-19, 09:54 PM
Replies: 10
Views: 2,991
Posted By OneIsAllYouNeed

Looks like there may be some easier options for...

Looks like there may be some easier options for cranks. Carbon-Ti now has AXS chainrings for 110bcd 5-bolt and (Shimano asymmetric) 4-bolt. That opens up a lot more crank choices. Rotor is supposedly...
10-25-19, 09:43 PM
Replies: 10
Views: 2,991
Posted By OneIsAllYouNeed

The shifters, derailleurs, and brakes are...

The shifters, derailleurs, and brakes are straightforward. Stoker cranks are the real challenge.

2x12 SRAM AXS requires the AXS chain. The only chainrings compatible with that chain are the...
10-25-19, 07:03 AM
Replies: 13
Views: 2,219
Posted By OneIsAllYouNeed

Agree with OldAcura. Move the stoker timing...

Agree with OldAcura.
Move the stoker timing chainring inboard as much as you can. Allow 3mm or more of clearance between the chainstay and the chain.
After thatís set, you may want to move the...
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