How to Properly Drill Drain Holes in Carbon Fiber Bicycle Rims: A Comprehensive Guide

Rim drain holes are designed to allow water that accumulates within the rim to drain away. They are a practical feature that improves the performance and longevity of your rims, especially in challenging riding conditions....

How BTLOS Rims Passed the UCI Test and Why It Matters

We used the standard series of ARC39 wheels for testing. After the test, the lateral runout and radial runout of the wheel only changed by 0.07mm and 0.05mm. This is a very amazing result.

Double Lock Carbon Spoked Wheelset From BTLOS

The newly designed double-lock carbon spoke wheels have passed all rigorous tests. Faster response, lighter weight, stronger rigidity, and more durable carbon fiber spoke wheels!

New Road DT350 Vs Old DT350

After 2 years, road DT350 is finally updated!

It's the same as the MTB DT350 2021+ update, reduced weight and the Ratchet system has been upgraded from the original 18T to 36T!

Introducing carbon spoked wheelset from BTLOS

After nearly 2 years of testing, we are proud to introduce the new carbon spokes wheelsets from BTLOS! This will be your new Race weapon!

BTLOS Referral Rewards

We will launch a referral cash reward on Black Friday and available for use existing orders. After you make a purchase, recommend your friend to buy. When your friend makes a successful purchase, both parties will have a $30 cash discount at the same time. The discount can be used for your current purchase order, up to a free order.


2021 is over. Thank you very much to all our customers who supported us this year. Best wishes and sincere blessings to our lovely customers in 2022. Hope you all are well.

COVID 2019 time, free upgrade FedEx, TNT, XDB shipping

Dear customer, I hope you and your family are healthy. Please protect yourself, wash your hands frequently, wear masks, and minimize going out...

The deadline for the upgrade service is July 30, 2020

Chinese New Year Holiday Announcement 2020

The Chinese New Year holiday is approaching every year. This holiday is the most anticipated holiday of the year for the Chinese. All families will be reunited on New Year's Eve.

BTLOS 2019 Merry Christmas

Merry Christmas!

The annual Christmas is coming, and the BTLOS team wishes everyone a Merry Christmas.

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