1" Threadless Steer, 25.4 x 320

1" Threadless Steer, 25.4 x 320 x 2.3/1.55, 25CroMo4.
This is a handmade product; the weight is approximate and may vary between batches.
Butting profile has an additional 0.3 of helicoidal reinforcement.

Threadless, with helicoidal reinforcement

• Family: Brain
• Type: SR
• OD: 25.4
• Profile: 2.31.55
• Length: 320
• Weight: 325g

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