| Accessories | Bicycles | Parts | Specials | Tools |
|---|
 110 mm BCD Mountain and Compact Road Chainrings from Harris Cyclery |
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|---|
| Accessories | Bicycles | Parts | Specials | Tools |
|---|
110 mm BCD Mountain and Compact Road Chainrings from Harris Cyclery |
|
|---|
We stock a wide range of chainrings for modern and older crank sets.For more technical detail see the B.C.D. entry in Sheldon Brown's Bicycle Glossary
Outer two rings are 110 mm, inner ring is 74 mm.The 110 BCD was in retreat for a while, but it is coming back in a big way since Tyler Hamilton started using a "compact double" crank in the Tour de France.
| 33 | T.A. inner/middle | $45.95  | Rare Size! |
|---|---|---|---|
| 34 | T.A. inner/middle | $54.95
| |
| Sugino | $28.95 | ||
| 35 | T.A. inner/middle | $54.95 | Rare Size! |
| 36 | Sugino | $28.95
| |
| T.A. inner/middle | $54.95
| ||
| 37 | T.A. inner/middle | $54.95 | Rare Size! |
| 38 | Sugino | $28.95
| |
| T.A. inner/middle | $57.95
| ||
| Rocket Ring | $17.95
| ||
| 39 | T.A. inner/middle | $57.95 | Rare Size! |
| Sugino | $28.95
| ||
| Rocket Ring | $17.95
| ||
| 40 | T.A. inner/middle | $57.95
| |
| T.A. outer position | $54.95
| ||
| Rocket Ring | $17.95
| ||
| Sugino | $28.95
| ||
| 41 | T.A. inner/middle | $57.95
| |
| T.A. outer position | $67.95
| ||
| Rocket Ring | $17.95
| ||
| 42 | T.A. inner/middle | $57.95
| |
| T.A. outer position | $67.95
| ||
| Rocket Ring | $17.95
| ||
| Sugino | $28.95
| ||
| 43 | |||
| T.A. outer position | $67.95
| ||
| Rocket Ring | $17.95
| ||
| 44 | |||
| T.A. outer position | CRT044 $75.95
| ||
| Sugino | $34.95
| ||
| Rocket Ring | $17.95
| ||
| Shimano Biopace | Sorry. All gone. | ||
| 45 | |||
| T.A. outer position | CRT045 $75.95
| ||
| Rocket Ring | $17.95
| ||
| 46 | |||
| T.A. outer position | CRT046 $75.95
| ||
| Rocket Ring | $17.95
| ||
| Shimano Biopace | Sorry. All gone. | ||
| Sugino | $34.95
| ||
| 47 | T.A. outer position | CRT047 $75.95
| |
| Rocket Ring | $17.95
| ||
| 48 | T.A. outer position | CRT048 $75.95
| |
| Sugino | $34.95
| ||
| Rocket Ring | $17.95
| ||
| 49 | T.A. outer position | CRT049 $75.95
| |
| 50 | T.A. outer position | CRT050 $77.95
| |
| Sugino | $39.95
| ||
| 51 | T.A. outer position | CRT051 $77.95
| |
| 52 | T.A. outer position | CRT052 $77.95
| |
| Sugino | $47.95
| ||
| 53 | T.A. outer position | CRT053 $77.95
| |
| 54 | T.A. outer position | CRT054 $77.95 |
T.A. chainrings are super-high quality, premium rings in Zircal 7075 aluminum. They have machined teeth, and a mirror-like finish.T.A. triple conversion chainrings include the necessary bolts and spacers to attach a 74 mm granny chainring.
Note that T.A. parts are generally in scarce supply, and we can't always keep all sizes in stock. In some cases there may be extensive delays before we will be able to ship. Classic T.A. Cyclotouriste cranks, chainrings and bottomm brackets are listed on our French Cranks Page.
These U.S. made 6061 T6 chainwheels are a great value, and ideal for use for fixed-gear road conversions.
They are thicker and stiffer than most road rings, but they work with either wide or narrow chain.
Double set of mounting holes means they fit either 110 mm or 130 mm bolt circle cranks!They have tall teeth to prevent accidental derailment, and are a great choice for singlespeed or fixed-gear bikes, though they will generally also work with derailers.
These are very similar to the no-longer available Tuf-Neck chainrings.
Available sizes: 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48
There is a lot of confusion about the compatibility of narrow 9-speed and 10-speed chains with older cranksets. Shimano says you should replace the inner chainring(s) with specially designated 9-speed ones, but then they're all too eager to sell you stuff, whether you need it or not.Shimano is also concerned about clueless users. The worst-case scenario is that you will be riding along with the bike in its highest gear (large front, small rear) and then for some bizarre reason shift down in front before downshifting in the back. (There is no shift pattern in which it is reasonable to shift in this sequence.) If you do shift this way, there's a small chance that the chain might "skate" over the edges of the teeth for maybe half a turn.
In practice this "problem" almost never materializes. Many, many cyclists are using 9- or 10-speed chains with older cranksets and having no problems whatever.