104BCD Oval Narrow Wide Chainring
Compatible with 12-speed chains (incl. Shimano HG+)
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Model |
32T or 34T or 36T or 38T or 40T or 42T or 44T or 46T or 48T |
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Color |
Black or Red |
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Made from |
7075-T651 Aluminum Alloy |
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Surface coating |
Anodizing |
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Made with |
CNC milling |
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Ovality |
12% |
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Timing |
108° after TDC (top dead center) |
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Chainring shape |
Oval |
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Compatible cranksets |
104 BCD |
| Weight, grams | 43（32T), 47（34T), 60 (36T) ,58 (38T), 68 (40T), 72 (42T), 82 (44T), 91 (46T), 99 (48T). |
| Chain compatibility | Standard 9/10/11/12 speed is available, sram axs cannot |
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Support paying an extra $10 to customize the same silver color
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| Bicycle shop or dealer contact customer service |
OVAL CHAINRING ADVANTAGES
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Even at-the-wheel distribution of pedaling torque
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Improved responsiveness and pedaling smoothness, narrower dead spots and increased span of your gluteus and hamstrings
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Easier uphill riding, especially on soft and slippery terrains
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Increased pedaling efficiency
Customer Reviews
Awesome piece of chainring! Went to for test ride with my mountain bike and easily pushed the pace with roadies. Delivery came earlier than expected (NZ). Would highly recommend to go for more expensive but great build quality.
The chainring is nicely machined from high grade material and does the job. Shipment to Germany took ages, though.
The chain doesn't jump, smooth ride and I like the feel from it. Its missing an index on it to figure out how to install it. The manual mentions a feature which is not on my chainring. Once you know, its all good and fit nicely.
PASS QUEST 104 BCD Oval Narrow Wide Chainring
Good product and best quality
FAQ
Continuous upgrading and optimizationSending our products out to almost anywhere in the world is just as exciting for us as it is for you.
However if your shipping destination is not included in EU duty free agreements e.g. Canary Islands, additional fees may apply (customs at the border).
Worldwide customers usually will not have to pay either - but we can’t guarantee that.
Known to us exceptions are Canada, Brazil, Argentina, Chile, Peru, Colombia, Malaysia, Indonesia, Philippines, where customer will have to pay duty and corresponding fees because those customs offices will hold Every single parcel.
Signature is Required at delivery. In some instances when according to DHL your address is in "remote area" we will use National Post service. In such case we will inform you about this before sending the goods out. Europe: 9.9eur USA, Canada and Rest of the World: 12$ (or 8.5$ for Post service) UK: 5.49£ Small items like lockrings, bolts are shipped by first class mail (1 - 3.5eur)
How to calculate gear inches for an oval chainrings
Exactly same way as for round chainring. You just need to use the nominal size in the calculation of an oval ring you have. That is, if you buy 32T oval you use for calculation 32T size. Reason for this is 32T oval chainring has same circumference as the 32T round. We optimize the shape but not circumference - it stays constant. Distance between each teeth always has to remain at 12.7mm to engage the chain properly. You can use any online calculator to get gear inches for an oval chainring.
Which size of an oval should I choose
We always recommend swapping like for like, so if you have a 32T round ring at the moment, you should consider getting a 32T oval. The same applies to our shiftable road ovals, we recommend that you purchase ovals with the same teeth count as your round rings.
