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julio 26, 2026

Cook Bros Bullseye Bottom Bracket Lock Ring Collar BMX Cruiser Fat Chance MTB

For your consideration are 3 different width aluminum lock collars for 5/8" spindles. These lock collars being offered all have an O.D. of 1" and an I.D. of 5/8" for 5/8" O.D. spindles. The price listed is per each and the price varies depending on width. The advantage to having these width choices is for your chainline adjustability on your bike. You can pick and choose your width from the drop down menu. Buy a single piece in the width you want, buy the same width set, or mix and match widths. The narrower the lock collar(s) the more adjustability you will have with your spindle. You can fine tune your chainline with these lock collars and also available in another auction of mine are spacers/shims. Add each of your lock collar width choices to your cart before checking out. These lock collars slide onto a 5/8" O.D. spindle (sold separately - see my others auctions listed) to keep your spindle from drifting side to side when installed on your bicycles bottom bracket. These lock collar help you to achieve optimal chainline with both the front sprocket and rear freewheel. These lock collars are installed in between the inside of your crank arm(s) and each of the bearing retainers. Each lock ring has a single set screw w/ a nylon thread compound to keep it in place once tightened. Pictures of the complete bottom bracket are reference only to see what type of bottom bracket kit these lock collars are intended for. These complete bottom bracket kits are NOT included with the sale of the lock collar(s) being offered. Shipping/Return Info: Flat rate USPS 1st class mail w/ tracking included. A full refund of the purchase price (less shipping) will be given for returns for un-installed new parts only. Parts that are returned that show wear from installation/mishandling will be subjected to re-stocking fee and this fee will be deducted from the original purchase before any refund will be given. Thanks for your understanding. Please view my other auctions and check my seller feedback rating on these products I have been selling over the years. I have had many satisfied customers using my products in completing their builds. You will be happy also. Thanks for looking. Feel free to email with any questions.
julio 26, 2026

American Standard Press Fit Bearing Retainers Cook Bros Bullseye MTB Cruiser BMX

For your consideration are a set of American Standard Press Fit Cups/Bearing Retainers for bottom bracket shells on bike frames. You will be choosing your choice of anodized color and with or without bearings from the drop down menu. These cups/bearing retainers being offered are 6061 aluminum and are precision machined to accept any standard R10-2RS bearing with a 5/8" ID x 1 3/8" OD x 11/32" depth. As far as bearings are concerned you can source your own and press them in yourself......OR......If you choose to buy bearings from me, I supply high quality imported Japanese double sided sealed bearings with these cups. If you choose to buy the bearings from me, the bearings will be pressed into the cups when you receive them. These Japanese bearings can be sold separately....inquire with an email if interested. Custom engraving to these bearing retainers can be an extra added service option for an additional charge. Feel free to inquire about details such as cost for engraving, turn around time for engraving, and/or a picture of an example of how custom engraving can look like on these cups. If you have a bottom bracket shell that takes a smaller ID than the American Standard press fit cups ......these cups can be machined down to a smaller OD size. Send an email for more specific information and details. Shipping/Return Info: Flat rate USPS 1st class mail w/ tracking included. There is a 30 day return in effect. A full refund of the purchase price (less shipping) will be given for returns for un-installed new parts only. Parts that are returned that show wear from installation/mishandling will incur a subjective (depending on damage) re-stocking fee and this fee will be deducted from the original purchase before any refund will be given. Thanks for your understanding. Please view my other auctions and check my seller feedback rating on these products I have been selling over the years. I have had many satisfied customers using my products in completing their builds. You will be happy also. Thanks for looking. Feel free to email with any questions.