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roughly 60% more torque than the Trail master 540 21T
equivalent speed to 540 27T
When you need a quality motor, look no further than the CrawlMaster Expert 540 from Holmes! The Expert series features the same quality construction as our Pro motors, but with a machine wound armature for an affordable alternative that won't break the bank.
FEATURES:
- Machine-Wound Armature
- Standup Brush and 7.5mm Commutator maximizes power and motor longevity
- Gold plated copper brush hood to resist corrosion and provide lowest resistance
- 5mm web 5 slot armature maximizes smooth startup and efficiency
- 1.4mm thick can features minimal venting and two high-power FB9 wet magnets to maximize torque and efficiency
- Dual Ball bearings
- Adjustable timing
- Holmes XX springs for consistent drag brake
- Holmes Soft Copper brushes for high torque and long motor life
- Broken in for immediate installation and use
MOTOR RECOMMENDATIONS AND SPEEDS
Looking to get a brushed motor for your rig, but don’t know where to start? Too many choices got you dizzy in the head? This guide will help you make a motor selection and ensure you get what you need and gear it properly!
Are you just starting out and don’t know what to get? Select a 55t TorqueMaster. 20t CrawlMaster, or 2200kv brushless for slow going and long run times or a 27t TorqueMaster, 13t CrawlMaster, or 3300/3500kv brushless for more power and wheel speed.
Don’t let your motor temperature get over 160°F (70°C) for best motor life! When in need of more speed, volt up and gear down instead of increasing the pinion size.
Purchasing for a child new to R/C crawling and trail running? The 55t TorqueMaster 540 Expert motor for crawling is our best suggestion. It is not overly powerful on 2 or 3s LiPo and is less likely to break parts. Faster (lower) turn counts, Pro series brushed motors, and brushless motors can break parts more easily. Beware of the power!
Below is a list of motor turn counts and speeds. Motors on the same line have equivalent speeds.
| Motor Type | 3 slot straight armature | 3 slot skewed armature | 5 slot straight armature | 5 slot skewed armature | Brushless |
| Fastest | 4500kv | ||||
| 3500kv | |||||
| 3300kv | |||||
| TorqueMaster 540 13t | |||||
| CrawlMaster Pro 540 11t | Puller 400 Crawl 13t Puller 500 Crawl 11t |
2700kv | |||
| TorqueMaster 540 27t TorqueMaster 550 21t TrailMaster 540 27t TrailMaster 550 21t |
CrawlMaster Expert/Pro 540 13t CrawlMaster Pro 550 10t |
Puller 400 Crawl 16t Puller 500 Crawl 13t |
2200kv | ||
| TorqueMaster 540 30t | Puller 400 Flow 33t Puller 500 Flow 30t |
CrawlMaster Magnum 540 11t CrawlMaster Sport 540 13t |
1850kv | ||
| CrawlMaster Expert/Pro 540 16t CrawlMaster Magnum 540 13t CrawlMaster Sport 550 12t |
Puller 400 Crawl 20t Puller 500 Crawl 16t |
1700kv | |||
| TorqueMaster 540 35t TorqueMaster 550 27t TrailMaster 540 35t TrailMaster 550 27t |
Puller 400 Flow 38t Puller 500 Flow 35t |
CrawlMaster Magnum 540 16t CrawlMaster Sport 540 16t CrawlMaster Pro 550 12t |
1500kv | ||
| TorqueMaster 540 40t TorqueMaster 550 30t |
CrawlMaster 540 20t CrawlMaster Sport 550 15t |
Puller 500 Crawl 20t | 1250kv | ||
| TorqueMaster Magnum 540 38t | |||||
| TorqueMaster 540 45t | |||||
| Slowest | TorqueMaster 540 55t TrailMaster 540 55t TrailMaster 550 45t |
1000kv |
