Review – Wolf Tooth 16 Tooth Cog


So earlier this year I installed a 42 tooth cassette cog to create an extended range setup on my 10 speed Sram cassette. It was a great upgrade to the drivetrain but I did notice very quickly that shift wasn’t as smooth across the smaller cogs. The jump from 15t to 19t was good but fair from smooth and under any kind of load was terrible. I started off with the SRAM 1070 11-32 cassette. By adding the 42 tooth cog I removed the 17 to make space.  This gave me 11, 12, 13, 15, 19, 22, 25, 28, 32, 42. The 4 tooth jump between 15 and 19 was to much.


For the fair price of $14.95 plus shipping I bought the Wolf Tooth Components 16 tooth Cassette cog. Installing was super easy. After removing the rear wheel and cassette, I replaced the 15 tooth cog with the 16 tooth. Giving me 11, 12, 13, 16, 19, 22, 25, 28, 32, 42 for cogs. After reinstalling everything, first ride and putting typical shifting load through the cogs was smooth again.


In the end I suppose I shouldn’t be so surprised but the difference one cog up or down can make and the cost to sort this out is spot on. Based on the cost and the short amount of time it took to replace the cog, this is the kind of job any home bike mechanic should be doing and have on their personal to do list.

Pros –

  • Perfect fit on SRAM cassette
  • Resolved shifting issue.

Cons –

  • Loss of ….. sorry can’t think of one.

Cost – $14.95

Information from Wolf Tooth Component Site below.


Shimano 10 speed cassettes

  • XT 11-36t (CS-M771)
  • XTR 11-36t (CS-M980)
  • Other 11-36t shimano cassettes like SLX HG81 11-36t – Modification required (must drill out rivets holding the 17t to the larger cogs)

SRAM 10 speed cassettes

  • PG 1030, 1050, and 1070 – 11-36 and 12-36
  • X0 11-36t(XG – 1080) – Remove the 14t rather than the 17t

Tech Specs:

  • See detailed instructions on our tech page: 16T instructions
  • The cog is 1.6mm thick and weighs 17g


The base line for this product need and review is as follows. Staying with a 1X10 speed configuration and moving to a wide range configuration that equals a typical 1×11 speed config. Current this bike is setup with a 30t front and 11-36t in the rear.

The other goal here is climbing ability. So I did two things here with this test. As I wanted to gain a climb gear with the 42t I also wanted to make some gains in the other gears with more speed. So I changed the chainring from the 30t a 32t.

Installation was very easy with the included instructions and to be honest the whole process makes sense. Remove the rear cog set and cleaned the freehub. Installed the E*Thirteen 42t cog and begin remounting the SRAM PG-1050 cassette. I choose to remove the 15t figuring if I was shifting down that far in gear I most likely would be on a fast fire road or downhill and could afford the jump. I did install a new SRAM PC-1071 chain and the included extra long B-Limit screw. There was a need to adjust the cable tension a bit and fine tune the B-Limit but over all a very easy and quick install.

Initial impressions very good, with consistent shifting with little if any noise added while pedaling. After come trail time and heavy dose of climbing of different types I am very pleased with the change. The change to the chainring to a 32t has made for a great long climbing gear matched with the 36t and when needed the 32t – 42t is amazing. One of the surprises was while in that gear I was able to make the short steep obstacles  and still have enough drive to get over some the big square edge rocks without dying out no more pedal like before. For the suggested price of $69.95, if you have a 10 speed this is a great upgrade that you will see and feel a difference with instantly.

Thumbs up.


Article – Used

It’s been a long time since I have bought a new bike, late 2007 to be exact. Since then the access to used bikes has grown and become an expectable way to source your next bike. Online forums and classifieds like; Pinkbike, BustedSpoke, eBay, Ride Monkey, Craiglist and now Facebook. Trust is the biggest factor for me, price is second. Many times you will find a good deal but it will come with a 14 year old that needs to get permission first to use someone else’s PayPal to complete the transaction. So there is a wee bit of profiling when searching for the next bike. And there is always a next bike. Along with the search or hunt come the process of the deal. With fixed priced cars this might be one of the few opportunities to test your price haggling skill out. This skill can be honed but for me is always hard, being willing to not get the deal and walk away from the bike is a challenge to separate.

The used bike market at times for me and others I know looking for a good deal can be a daily activity that is shared and enjoyed. Most would agree the used market is needed do to the cost of the current dream bikes out and their dreamy prices. With many mid range complete bike in the $3000 range and higher, new is out of the question with little kids running around and single incomes. If it wasn’t for the used market many of us would be riding some very out bikes with older technology and maybe not enjoying ridding as much.

Could the used market be as important as the new market, maybe. Maybe even a bit more.