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130 mm BCD Road Chainrings from Harris Cyclery

Sizes: 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 |

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

130 mm bolt circle (Standard "Road" Size, double and the two largest rings of a triple.)

Any ring on this page will fit any 130 BCD crank, including Shimano Ultegra, 105, Tiagra double and triple, also Dura-Ace double.

The middle ring on a Dura-Ace triple is a special "Triplizer" type ring, using a non-standard 92 BCD, for which only one "granny ring", a 30, is made (not available from Harris).

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SuginoTAOrigin8 110/130
Sugino T.A. Rocket Ring

SizeDescriptionPart NumberPrice (Click Cart Button)  
38 Rocket RingCRK380buy button
SuginoCRG338 buy button
T.A.CRT38 buy button With shift-assist pins for middle position.  
39 Rocket RingCRK390 buy button
SuginoCRG339 buy button
T.A.CRT39 buy button With shift-assist pins for middle position.  
40 Rocket RingCRK400 buy button
SuginoCRG340 buy button
T.A.CRT40 buy button With shift-assist pins for middle position.  
41
Rocket RingCRK410 buy button  
42
Rocket RingCRK420 buy button
SuginoCRG342 buy button
T.A.CRT42 buy button With shift-assist pins for middle position.  
43
Rocket RingCRK430 buy button  
44
Rocket RingCRK440 buy button
SuginoCRG344buy button
T.A.CRT44 buy button With shift-assist pins for middle position.  
45 Rocket RingCRK450 buy button  
46
Rocket RingCRK460buy button
SuginoCRG346 buy button
T.A. CRT46 buy button With shift-assist pins for outer position.  
47 Rocket RingCRK470 buy button  
48 Rocket RingCRK480 buy button
SuginoCRG348 buy button
T.A.CRT48 buy button With shift-assist pins for outer position.  
49 T.A.CRT49 buy button With shift-assist pins for outer position.  
50
SuginoCRG350 buy button
T.A.CRT50 buy button With shift-assist pins for outer position.    
52
SuginoCRG352 buy button
T.A.CRT52 buy button With shift-assist pins for outer position.  
53
T.A.CRT53 buy button With shift-assist pins for outer position.  
54 T.A.CRT54 buy button With shift-assist pins for outer position.  

     

Rocket Ring

Origin8 (Formerly Rocket Ring) BMX Chainringsbuy button
(fit 110 or 130 cranks)

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

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T.A. Chainrings from France

T.A. chainrings are super-high quality, premium rings in Zircal 7075 aluminum. They have machined teeth, and a mirror-like finish.

Note: We no longer sell the TA Triplizers.

Classic T.A. Cyclotouriste cranks, chainrings and bottomm brackets are listed on our French Cranks Page.

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"9-Speed" Chainrings

There is a lot of confusion about the compatibility of narrow 9-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-speed chains with older cranksets and having no problems whatever.

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Click Here for Other Chainring Bolt Patterns

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We also have a page of selected links

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URL: http://harriscyclery.com/130

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