130 BCD (5-bolt AERO) Round Track Chainring Fixed Gear

Rating: 5.0 out of 5 (4)

Chainring model: 46T-58T Black, 





Made from

7075-T651 Aluminum Alloy

Surface coating


Made with

CNC milling

Compatible cranksets

130 BCD (5-bolt AERO )

Weight, grams 99 (46T), 105 (47T), 114 (48T), 117 (49T), 126 (50T), 138 (51T), 144 (52T), 159 (53T), 167 (54T),185 (55T), 192 (56T), 200 (57T),204 (58T),
Chain compatibility  One-half pitch one-eighth width
Support paying an extra $10 to customize the same silver color
Bicycle shop or dealer contact customer service



  • Our tooth height achieved 8.5 mm, Increased tooth height improves chain retention 
  • Manufactured using 7075-T651 highly durable aluminum alloy
  • The chamfering design can reduce the weight of the gear plate and make the gear plate more beautiful


Customer Reviews

Based on 4 reviews
Reginald Washington
130 BCD (5-bolt AERO) Round Track Chainring Fixed Gear

So far, so good! Exactly what i was looking for…

Solid 49t Chairing road/ trackalo

Very dependable! has been holding up terrifically, nice simple design. Had a hiccup on the order and CS were just wonderful in fixing the issue. Very happy with order

50t Track

Incredible construction, love the looks, amazing performance.

Robert Gordon
Excellent service and product

I received a excellent service very quick delivery. The chainring is very good quality and lightweight.


Continuous upgrading and optimization

Sending 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.

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After years of precipitation,Our technology is becoming more and more mature

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