BOS Rear Air Shock Servicing | Queenstown | NZ-Wide
BOS Kirk Family Service New Zealand
Professional servicing, repairs, air-volume setup and tuning for compatible BOS Kirk and Kirk 2 air shocks.
Specialist Suspension Workshop
Rear shock servicing, repairs, setup and tuning completed in-house for compatible BOS Kirk Family products.
Fast Turnaround
Most suspension service work is completed within 24 to 48 hours where possible.
Six-Month Workmanship Warranty
CJSUSPENSION service workmanship is covered for six months.
NZ-Wide Service
Send your BOS Kirk Family shock to our Queenstown workshop from anywhere in New Zealand.
BOS Kirk Family Servicing
We service compatible BOS Kirk Family products when the correct service parts and technical information are available. Each unit is inspected during servicing and any additional work is confirmed before proceeding.
25hr BOS Kirk Family Service
A clean, re-grease and lubrication service for new or low-hour air shocks, or as a refresh between larger service intervals.
- Air pressure recorded
- Damper checked on hand dyno. If aerated, a 100hr service is required.
- Mounting hardware inspected for wear
- Air sleeve removed and cleaned
- Air sleeve seals cleaned and inspected for wear. If worn, a 50hr service is required
- Seals re-greased and reused
- Air sleeve grease and lubrication refreshed
- Shock air sleeve rebuilt
- Air chamber charged with nitrogen
- Air pressure returned to the original setting
- Function checked
Ideal for newly purchased bikes or air shocks that have spent time sitting unused. Suspension can remain static for months before its first rides, allowing lubrication to settle and seals to develop stiction.
Book 25hr Service
50hr BOS Kirk Family Service
A mid-interval air sleeve service to replace seals, refresh lubrication and keep the shock running smoothly between complete services.
- Air pressure recorded
- Damper checked on hand dyno. If aerated, a 100hr service is required
- Mounting hardware inspected for wear
- Air sleeve removed and cleaned
- Shock inspected for wear or damage
- Air sleeve seals replaced
- Air sleeve grease and lubrication refreshed
- Shock air sleeve rebuilt
- Air chamber charged with nitrogen
- Air pressure returned to the original setting
- Function checked
If the damper is aerated or further wear is found, a 100hr service or additional work may be required.
Book 50hr Service
100hr BOS Kirk Family Service
A complete air spring and damper service to restore that like-new feel.
- Air pressure and adjuster settings recorded
- Mounting hardware inspected for wear
- Shock completely dismantled
- Shock inspected for wear or damage
- Air spring fully serviced
- Compression and rebound damper fully serviced
- Damper oil, seals, grease and assembly lubrication renewed
- Damper vacuum-bled
- Nitrogen charge renewed in the air sleeve and damper IFP chamber
- Shock rebuilt and function checked
- Adjuster settings and air pressure returned to the original or recommended starting point
Our complete rear shock service, covering the air spring and damper.
Book 100hr Service
Kirk Family Repairs, Setup & Tuning
Available workshop support is matched to the exact BOS Kirk Family model, generation and condition.
BOS Kirk Family Custom Damper Tuning
Compatible BOS Kirk Family dampers can be custom tuned for rider weight, riding style, terrain and the level of support or comfort required.
- Customer setup and riding information reviewed
- Compression and rebound assessed
- Valving tuned to suit the rider and bike
- 100hr rear shock service completed
- Baseline settings supplied
Custom rear shock damper tuning must be added to a 100hr rear shock service.
Book Custom Tuning
BOS Kirk Family Air Volume Spacer Setup
Adjust your BOS Kirk Family air spring with volume spacers to change the spring progression and bottom-out support to better suit the rider and terrain.
- Rider weight, bike and riding style reviewed
- Current air spring setup checked
- Existing volume spacer configuration checked
- Volume spacers added or removed as required
- Air sleeve reassembled
- Air pressure and setup adjusted
- Shock function checked
- Baseline settings supplied
Air volume spacers can be installed as part of a 25hr, 50hr or 100hr rear shock service at no additional installation charge. If no shock service is booked, installation is $30 plus the cost of the spacers. If the air sleeve assembly must be removed, a minimum 25hr service is required.
Book Volume Spacer Setup
BOS Kirk Family Removal & Installation From MTB
Removal and refitting of the BOS Kirk Family when a complete clean bike is delivered to the workshop.
- Suspension component removed from the bike
- Suspension component refitted after workshop service
- Basic installation checks completed
Complete bikes must arrive reasonably clean and ready to work on.
Book Workshop Service
Send Your BOS Kirk Family From Anywhere in New Zealand
Book online, complete the service form and use one of the courier links on our booking page to arrange tracked shipping directly to our Queenstown workshop.
BOS Kirk Family Service FAQs
Do you service BOS Kirk Family?
Yes. CJSUSPENSION services compatible BOS Kirk and Kirk 2 air shocks. Exact generation and shock specification are confirmed before work begins.
Ready to Service Your BOS Kirk Family?
Book online, then drop your suspension into our Queenstown workshop or arrange tracked shipping through the courier links on our booking page.