Comments for Two Wheel Lifestyle

Comment on The Math Behind A Wide Range 2×11 Drivetrain by Eric

Eric — Wed, 30 Mar 2022 15:05:39 +0000

Calculating gear inches off the ISO rim size gives a relative difference between different wheel diameters but you need to take into account actual tire diameter for an accurate comparison. A 700×25 road tire and a 29×3″ mountain bike tire both have an ISO size of 622 for the bead seat diameter. Same gear inches with your method but drastically different in reality. Measuring the OD of the tire or doing a roll out test to measure circumference would be a better method.

Comment on Motorists Who Consider Themselves Green Should Show More Respect To Cyclists by Manny

Manny — Fri, 03 Dec 2021 11:44:04 +0000

Good Morning, This is a good topic, BUT ANY VEHICLE THAT IS USE AS A WEAPON TO HURT ANY BIKER SHOULD GET CITED IMMEDIATELY!!! LIFE IS TO PRESCIOUS TO BE SCARED TO LIVE.

Comment on 5+ Ways to Make a Super Wide Range 2 x 11 Speed Drop Bar Drivetrain – Only 1 With an Adapter! by VYTAS NAGISETTY

VYTAS NAGISETTY — Tue, 17 Nov 2020 07:15:22 +0000

I love this article. I can totally relate. I “built” a dropbar mountain bike on an old (2004) Brodie One Ball (single speed mountain bike) frame. The frame is cool because it has sliding rear dropouts in case you want a single speed. But it also allows for 1x, 2x, or 3x. I have done them all but settled on 3x for the gear range. I am hitting 50 years old and I need all the help I can get because I love to ride for a long time, but that means pacing. On the Brodie, I use 9 speed Shimano XT front and rear derailleurs with the latest (cables under bar tape) Sora 9 speed shifters on drop bars. I use a J-tek adapter for the front derailleur to get the necessary cable pull from the Sora front triple shifter. Their adapter made this setup work. Then I bought an XT triple crank from Europe, because in the US, Shimano was only selling a max of 44-32-22, but I wanted a bigger big ring. In Europe Shimano sold an XT touring triple: 48-36-26. That, with an 11-34 in the back has not only a massive range, but also relatively small jumps between gears. You can really dial in your cadence.
I love it! I only wish my Brodie was carbon fiber and feather weight. The reality is, this bike is great if you have all day for a ride because it allows you to keep your heart rate down, even on the most demanding climbs, because of the gearing. And I have 2 inch tires on it which makes descending much more confident. But it is definitely slower than my carbon fiber road bike. Of course, I can’t take my carbon fiber road bike anywhere I want to explore without reconnaissance, and that is the difference.

Comment on 5+ Ways to Make a Super Wide Range 2 x 11 Speed Drop Bar Drivetrain – Only 1 With an Adapter! by David Turner

David Turner — Wed, 17 Jun 2020 20:39:00 +0000

Thanks for the ideas.
I’m really liking #2 since I have Force 1 11sp and I want to go to a 2x setup.
Thinking I need a XO1 10sp RD, 11sp FD, Left shifter, 11sp SRAM cassette and 2x crank.
I hope this works 🙂

Comment on The Math Behind A Wide Range 2×11 Drivetrain by alex mikolevine

alex mikolevine — Fri, 17 Apr 2020 23:28:07 +0000

Thanks for reasoning this out! I just had my one and only bike stolen, after customizing the gears many years ago to this: 48-34-22 crank (XTR back then could just barely do this, nothing can do it now?) and 11-36 cassette. I wanted to go fast downhill with road tires and climb long difficult climbs in dirt. 714% worked just fine! These big cassettes now make a double instead of triple crank possible, as you showed– but is there any new bike made that comes close to this? It sounds like your customization involves a lot of tricks: spaces in the chain and the crank, reboring the holes in the rings?
Do you think it is easier to buy a 1x and turn it into a 2x, or start with a 2x and change rings and cassette?

Comment on 5+ Ways to Make a Super Wide Range 2 x 11 Speed Drop Bar Drivetrain – Only 1 With an Adapter! by Graeme

Graeme — Sun, 12 Jan 2020 09:59:58 +0000

Really interesting article, thanks. I took option 5 but then I started with DT friction shifters. I get 112″ -23″ with a 3×7 using Stronglight 107 Tri (51-41-30) with Campag ‘leisure’ triple FD and Suntour freewheel (12-14-16-19-23-28-34) with Campag Comp Triple RD, all moved with Simplex Retrofriction. This gives excellent gear range on my 531 Peugeot for ‘heavy’ road conditions, much more civilised than the ‘classic’ 46″ low gear.

The Shimano cage interchangeability makes you wonder why this kind of modular approach is not more common. Some Suntour RDs had cage interchangeability, for example Cyclone 7000 (short and medium cages) and XC Sport 7000 (long cage) and I’m sure there will be more examples.

Comment on 5+ Ways to Make a Super Wide Range 2 x 11 Speed Drop Bar Drivetrain – Only 1 With an Adapter! by Phil

Phil — Wed, 01 Jan 2020 22:11:37 +0000

Thanks, this was really helpful. Good info, and also easy to understand. Of these, my preferred option (given the random parts I already own) is the JTek shiftmate–I will try it out.

Comment on The Math Behind A Wide Range 2×11 Drivetrain by Paweł Łabaj

Paweł Łabaj — Sat, 31 Aug 2019 18:05:48 +0000

In reply to dirtdad.

Thanks the sharing. I thought that you found ready crankset and I didn’t think about replacing a ring.

I think I’ll try to use SRAM GX 1000 2×11 GXP 36-24T and replace outer ring. This set has also 64/104 mounts, so it should work.

Thanks again!

Comment on The Math Behind A Wide Range 2×11 Drivetrain by dirtdad

dirtdad — Fri, 30 Aug 2019 21:58:44 +0000

In reply to Paweł Łabaj. I started with a Shimano XT 785 crankset. It has a "standard" 64/104 bcd bolt pattern. I changed rings to an FSA 42T and a generic 26T. You might have to grind the rings to make them fit, but only the area around the bolt holes. I also needed to use some chainring spacers to get the distance between the rings right.

Comment on The Math Behind A Wide Range 2×11 Drivetrain by Paweł Łabaj

Paweł Łabaj — Fri, 30 Aug 2019 20:49:10 +0000

I am thinking about the same set up. However I have one big problem – where to buy or how to build 40-24T crankset.

Could you share a list of your drivetrain components?