The Low Rent Hawk 250 DLX Page

Contact: hawk250@ecimulti.org

Last Updated - 11/16/2020


Fastener Related

This page will cover specific fasteners I've used to replace the Chinese bolts as I saw fit and time/budget allowed. This is informational only, and you should consult an engineer be replacing any critical fastener. Fasteners I have replaced I have met or exceeded the original strength, often exceeding just due to availability from my preffered fastener vendor. I take NO RESPONSIBILTY should you replace any OEM bolt and experience a failure.

Besides replacing important stuff, I also replaced non-critical fastners on the bike with an array of M6 x 1.0 stainless hex socket in various lengths. A.) I like how they look better (hey, I'm honest) and B.) I like being able to work on my bikes with mostly just T handle tools I own. I won't even attempt to outline every one of those I've replaced, but they pretty much all are one of three lengths on this bike: 20mm, 16mm and 10mm. There are some outliers, but really most fall within these.

It should go without saying, but there are some aluminum components on the bike. Use your head before you go throwing a pipe on the end of a wrench to torque something down. Use the CSC TT250 service manual for guidence on what torque values should be. I always reccomend the use of a paint pen on critical fasteners too, you can quickly at a glance see if you have issues during your pre-ride inspection. I also highly reccomend the use of Loctite 243, or a similar high temperature product, on fasteners.


Brakes
Application Bolt Thread, Pitch & Length (mm) Bolt Type Quantity Needed Notes
Front caliper bracket to fork M8 x 1.25 x 35 Flange head, grade 10.9, zinc coated 2 Might need to go JIS to get 35mm. Too long and it will hit the brake rotor!
Rear caliper bracket to sliding bracket mount M8 x 1.25 x 20 Flange head, grade 10.9, zinc coated 2


Steering & Forks
Application Bolt Thread, Pitch & Length (mm) Bolt Type Quantity Needed Notes
Handle bar riser clamp to upper triple clamp M8 x 1.25 x 35 Hex socket head, grade 12.9, black oxide finish 4 I also used a black oxide finish lock washer with these.
Upper triple clamp fork pinch bolts M8 x 1.25 x 55 Hex socket head, grade 12.9, black oxide finish 2 I also used a black oxide finish lock washer with these.
Lower triple clamp fork pinch bolts M8 x 1.25 x 50 Hex socket head, grade 12.9, black oxide finish 4 I also used a black oxide finish lock washer with these.