Complete Swedish-made headset with open locknut for models with handlebars mounted in stem with expander.
Made for perfect fit to Monark, MCB and Rex frames and front forks as follows:
Steering head with 30mm inner diameter (wear limit: >30.1mm)
Steering crown with thread 1´´-26g / tube: Ø=25.4mm / flange: Ø=25.8mm
NOTE: The steering head can often be heavily worn, especially in the lower part, this must of course be remedied before mounting the new bearing in order to achieve a perfect result! Note, however, that ovality can occur and then you have to count the cut between several different measurement points.
Technical data:
A: Lock nut open chromed with thread: 1"-26g
B: Bearing cup upper with thread 1"-26g
C: Ball ring with 15pcs 3/16"(4,76mm) outer diameter Ø=39mm
D: Cone upper for steering head with 30mm inner diameter.
E: Lower bearing cup for steering head with 30mm inner diameter.
F: Ball ring with 15pcs 3/16"(4,76mm) outer diameter Ø=39mm
G: Lower cone for steering crown with flange 25,8mm
Cones and bowls are manufactured according to the older, for the bicycle and moped industry, current Swedish standard and hardened and electro-galvanized for very long durability.
Can replace the following original numbers:
Monark/MCB
Lock nuts: 6078/3, 6113/3
Bowl, upper: 6075/5, 6110-5, 6111-5, 24878-1, 6115-5
Cone, upper: 6075/7, 6110-7, 6111-7, 24878-2, 6115-7
Ball ring: 6075/6, 1506, 1508, 24878-5, 6115-6
Bowl, lower: 6075/8, 6110-8, 6111-8, 24878-3, 6115-8
Cone, lower: 6110-9, 6111-9, 24878-4, 6115-9
Rex
Lock nuts: 7776
Bowl, upper: 7756
Cone, upper: 7764
Ball ring: 7760, 2990
Bowl, lower: 7768
Cone, lower: 7772
Important: The parts cannot be combined with older original parts according to the above original numbers. The new steering bearing replaces the old one as a whole, i.e. all parts must be replaced!