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Discussion Starter · #1 ·
Does anyone know the thread pitch & size of the 2 threaded frame mounts in the rear of the 451? I want to build a bike rack but need that spec. Has anyone attempted this? Any links to similar projects would also be helpful.
 

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Discussion Starter · #4 ·
No the 1 holes in the rear bumper that some bike racks thread into. Like this one bolts in.https://www.ebay.com/itm/164185650825?_trkparms=ispr%3D1&hash=item263a3a3689:g:1FUAAOSwVFlT-O9-&amdata=enc%3AAQAFAAACgBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkfOCvCjTOBWK8pwriaolq5g7Ny%252FN9nYXBSu396npsG7QcuV8e6CmDipAck1UUMISlE7I%252FAzrbojXn1tbxqLeVj4b3qEpAdhCPxfh0kD1yR1U%252FidAk39CqqewcFhnwP9jycxsQGRwxvNbJqjzBn5JgYjyNhI8psX1ckjB%252BfIvatnJT9bDe8fudzreCO9bB6EOVrNMjjU3YKpuVEhtC2dWYYG6367kyHdbN2Hbcn3NciwuuKuFE%252BQj7y2y%252BGcf6ejB5ocZi9E0Z8EEF%252B5ZyiaFbZQPGOYzWISzN%252BZylj1Ruf59NCwUsBuUoJv1FoBUAgOMY5AuKNqpw2sE4KQq6mOaccM%252BTpVqGQhprXXisrQ2uceR2YeyZt%252FbaxQC02cvRFQ82SMK8Si0jWJlZc9XDozdoKLlkiqj71COkOZ%252BllRatGt%252Fd7ocenC3S7Pyl437tQ8No3JZrz2b0Guj%252FumCvlkF7zfaPZC%252BrDbOw4Za3EiNnLKdv8NloWtlHqRTPs3jWqCfLcQ3RWkbZuDaYLjXPaEslc5%252Fcq8W98VO26ifwbhW4Vtq1ANlZSonC4JUGuAbJWOVGxWyo7cJszxFZHe95zUNnhhLSOJfgrDOWoOd3DApT%252FQypLaFcVyzEWg4pYDXKhctJwvtoSunolAOEdaT2%252FBTBHrhQ0Na680OABFrIfKslzqeqby%252F6tftEqBOwlptyRD1iFPVO%252FEfozveQoKCr6MYPSYMKp42gO%252Fpo57Mj%252FIhBGG3tlYWiLC0j1Cs6UgbBkOBak7QTvNvUSTtPONdfaG08APKr8y5zMVla0ns%252FoYuvESk%253D%7Ccksum%3A1641856508250ed6e0269d4f4b53b133899e580a9fe0%7Campid%3APL_CLK%7Cclp%3A2334524
 

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If I remember correctly that's a m16x3 trapezoidal thread
Edit: so, I'm going to correct myself here. The tow hook thread is actually 5/8-8 acme. I know, I doesn't make sense for an European auto maker to use standard threads, so what I'm assuming it's going on here, it's some kind of proprietary thread, m16x3.175 or something like that. Possibly a different thread angle, but anyway 5/8-8 worked perfectly
 
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