Proprietary replacement bottom brackets for the Trek family of bikes;Only compatible with 24 mm cranks;Not compatible with BB30 cranks;For premium ceramic options, see our CeramicSpeed BB90 Kits;
Could you please confirm the type of bottom bracket kit required for a Trek ALR5 Checkpoint 2019
Thank you for your email. I have checked the spec on last years model of the Checkpoint ALR5 and the BB listed as being used is Shimano BB-RS500-PB. We have this item in stock should you wish to order.
Let me know if you have any further question.