The Sour Crumble is a modern 4130 steel trail hardtail from SOUR bicycles out of Germany. Today we take it out on the trails to see what it's made of. Is it more of an xc bike? An enduro race bike? A trail bike? Today we find out.

Products in this video:
Sour Crumble Frame: https://bit.ly/3oRA7E0
Frozen Grips: https://bit.ly/3r3fdoi
Roost Titanium Riser Bars WITH A DISCOUNT!: roostbike.com/hardtailparty
Roost Dominator Ti Stem: https://bit.ly/32r7Yfz
Roost Nero Pedals: https://bit.ly/3HPkk15
Ignite Catalyst Cranks: https://bit.ly/3oMkNsk

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Gear I use and love:
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Lab Austere hip pack: https://bit.ly/3p37K58 - code "Hardtail.Party" 25% off
Handup Gloves: https://bit.ly/3dhUe8z - use discount code "HARDTAILPARTY"
My shop tools: https://www.amazon.com/shop/hardtailp...
My glasses (use code "hardtail10"): https://bit.ly/3aXBeKp
My tire sealant: https://bit.ly/2ULJirZ
My favorite grips: https://bit.ly/3mYRL8Z
Hardtail Party collection by pedal industries - code "HARDTAILPARTY": https://bit.ly/3ilNdqH
What's in my water bottles (Tailwind): https://bit.ly/2Xbxy3q
My hooded sun shirt: https://bit.ly/38NdU1x
Milwaukee Inflator. I love this thing! https://amzn.to/38Vdqrj
Presta adapter: https://amzn.to/3cMADx1
5% off all RSD bikes using code "party" - https://bit.ly/3dj2nZP -
Ryan Leech Connection: $19 off - coupon code "hardtailparty"​ - https://bit.ly/2UwrmQq
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