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BBB · Semi-integrated headset
A tidy, sealed replacement for ZS41 head tubes.
$49.99
PriceIn stock, ready to ship
A straightforward zero stack headset for frames with a 41.4 mm head tube top and bottom and a straight 1 1/8 inch steerer. Sealed bearings, an open crown race and a low profile make it a good like-for-like replacement for a worn headset.
Sold by Ashburton Cycles
Verified store
Price
$49.99
Head tube
41.4 mm inner, top and bottom
Steerer
1 1/8"
S.H.I.S.
ZS41/28.6 | ZS41/30
The BBB BHP-50 is a semi-integrated (zero stack) headset for frames with a 41.4 mm inner head tube at both ends. It suits a straight 1 1/8 inch steerer, and in S.H.I.S. terms it's ZS41/28.6 up top and ZS41/30 at the bottom.
The bearings sit in cups pressed into the frame, so it looks almost fully hidden while the frame itself never takes bearing wear. Sealed retainer CrMo bearings keep grit and water out, and they can be swapped when they eventually wear.
An open crown race makes the fork side easy to fit, and the whole headset weighs 105 g. It's a common size on many older road, hybrid and MTB frames.
Riders replacing a worn headset on a frame with a 41.4 mm (ZS41) head tube and a straight 1 1/8 inch fork.
ZS41 fit
41.4 mm head tube top and bottom.
Straight 1 1/8" steerer
ZS41/28.6 upper, ZS41/30 lower.
Sealed bearings
Keep dirt out for a longer life.
Easy fork fitting
Open crown race included.
Every detail as listed by the manufacturer.
BBB · Semi-integrated headset

A tidy, sealed replacement for ZS41 head tubes.
$49.99
In stockHead tube
41.4 mm inner, top and bottom
Steerer
1 1/8"
S.H.I.S.
ZS41/28.6 | ZS41/30
Bearings
Sealed CrMo
A straightforward zero stack headset for frames with a 41.4 mm head tube top and bottom and a straight 1 1/8 inch steerer. Sealed bearings, an open crown race and a low profile make it a good like-for-like replacement for a worn headset.
The BBB BHP-50 is a semi-integrated (zero stack) headset for frames with a 41.4 mm inner head tube at both ends. It suits a straight 1 1/8 inch steerer, and in S.H.I.S. terms it's ZS41/28.6 up top and ZS41/30 at the bottom.
The bearings sit in cups pressed into the frame, so it looks almost fully hidden while the frame itself never takes bearing wear. Sealed retainer CrMo bearings keep grit and water out, and they can be swapped when they eventually wear.
An open crown race makes the fork side easy to fit, and the whole headset weighs 105 g. It's a common size on many older road, hybrid and MTB frames.
Riders replacing a worn headset on a frame with a 41.4 mm (ZS41) head tube and a straight 1 1/8 inch fork.
ZS41 fit
41.4 mm head tube top and bottom.
Straight 1 1/8" steerer
ZS41/28.6 upper, ZS41/30 lower.
Sealed bearings
Keep dirt out for a longer life.
Easy fork fitting
Open crown race included.