[Shades]

My drivetrain is all a bit worn out on my commuter bike and I had an idea of replacing the existing 9 speed (ie standard MTB triple with 11-34 cassette) with a simple single chainring, large cassette set-up like SRAM XX1.  The only thing putting me off is the cost, but are there more reasonably priced alternatives?  Could be a case of ‘if it aint broke….’ and just replace the current drivetrain ‘like for like’.

Topic

[fukawitribe]

ru w00dsy wrote:

Wolf Tooth Components website might be worth a look, link to their adventure / gravel 1x set ups, has a useful chart to help with selecting gearing range…

http://www.wolftoothcomponents.com/pages/1x-gravel-setup

The technical documents and 1x drive summary is also a worthwhile read.

http://www.wolftoothcomponents.com/pages/the-mechanics-and-science-of-1x-drivetrains

Thanks for the links, been on their site a fair few times recently but missed both of these. Nice.

[bikebot]

What is your current groupset

What is your current groupset?

If it’s a bike for just commuting, cheapest way to start is just replace the chainset (or even just the chainring) and remove the front deralleur.  Use a narrow wide, and you’ll probably be able to forego a chaincatcher.  You’ll can then put a cheap 11-36 on the back without any issues when that needs replacing, for a little more range. The price goes up very sharply with larger cassettes.

[ru w00dsy]

Might be a useful article….

Might be a useful article….

http://www.bikeradar.com/mtb/gear/article/how-to-convert-to-a-1x-drivetrain-37451/

 

Not sure if your route is off road as well as road? Just thinking that your current set up is a triple MTB rig, so I would think you would want a rear mech with a clutch or a chain line guide if you went 1 x 11 and had bumpy/off road sections.

 

Wolf Tooth Components website might be worth a look, link to their adventure / gravel 1x set ups, has a useful chart to help with selecting gearing range…

http://www.wolftoothcomponents.com/pages/1x-gravel-setup

The technical documents and 1x drive summary is also a worthwhile read.

http://www.wolftoothcomponents.com/pages/the-mechanics-and-science-of-1x-drivetrains

 

[Welsh boy]

Here are a few links:

Here are a few links:

Cranks: http://www.spacycles.co.uk/m2b0s109p3051/SPA-CYCLES-TD-2-Touring-Cranks

Or: http://www.spacycles.co.uk/m2b0s109p2003/SPA-CYCLES-XD-2-Touring-Cranks

Bolts: http://www.spacycles.co.uk/m2b0s173p3399/SPA-CYCLES-Chainring-bolts-%28head%29-x5

http://www.spacycles.co.uk/m2b0s173p3400/SPA-CYCLES-Chainring-bolts-%28sleeve%29-x5

Bottom bracket: http://www.spacycles.co.uk/m2b0s110p141/STRONGLIGHT-JP400-Steel

Cassette: http://www.ebay.co.uk/itm/like/Miche-10-speed-cassette-11-28-with-miche-slotted-10-speed-chain/192000148386?hlpht=true&ops=true&viphx=1&_trksid=p5197.c100068.m2280&_trkparms=ao%3D1%26asc%3D20140211125758%26meid%3D745c5e91eeff4496a64296af613e53e7%26pid%3D100068%26clkid%3D462651117548219989&_qi=RTM2108002

Rings: http://www.spacycles.co.uk/m2b0s210p3055/SPA-CYCLES-110-BCD-Zicral-Middle

[Welsh boy]

£130 for new 10 speed
£130 for new 10 speed shifters, £20 ish for a cassette (someone on eBay selling new miche 11-28 10 speed cassette and chain for £27), £20 for a cranks (spa cycles TD2 cranks, double version), £12 for 107mm axel bottom bracket (spa cycles), £4 for single space chainring bolts and around £18 for a chain ring (spa cycles again). Use single ring on outside (big ring) placement for a very good chain line and off you go. I have set 2 of my bikes up with this arrangement using a 36 tooth ring and I am about to do a third one. Obviously much cheaper if you stick with your 9 speed shifters, shop around for new cassette and chain plus new jockey wheels for your old rear mech

[VeloUSA]

You are correct about cost as

You are correct about cost as the XX1 groupo price is worth more than  your entire bike.  Stick with 9 speed drivetrain for cost savings.

[Author]

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