Yup, elastic strap installed properly can help make it nice and stable.
On the blue frame with the SS and Thomson seatpost it looks like a webbed strap. What's the deal? That looks lie a better bet i.e. no flex. Would you agree?
@Quincy started
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On the blue frame with the SS and Thomson seatpost it looks like a webbed strap. What's the deal? That looks lie a better bet i.e. no flex. Would you agree?