yes...all the spring types are available in all the models
check the "Upgrade" field in the description of the 426 and 454
426 upgrade Over 409: External Floodgate
454 Upgrade Over 426: Hollow crown and aluminum steerer
check the "Upgrade" field in the description of the 426 and 454
426 upgrade Over 409: External Floodgate
454 Upgrade Over 426: Hollow crown and aluminum steerer