Product Description
Which Width Is Right for Your T870?
- Factory-installed width on most T870s
- Lower tension on rollers → longer undercarriage life
- Best for hard surfaces: concrete, asphalt, packed gravel
- Better maneuverability in tight spaces
- SKU: B450x86x58M-BTT870
- Distributes T870's 12,678 lbs weight over a larger footprint
- Reduces psi → less lawn & turf damage
- Ideal for soft/wet ground, mud, landscaping work
- Larger footprint absorbs more impact — softer ride on rough terrain
- SKU: B450x86x60M-BTT870
Not sure which to choose? Most T870s leave the factory with 450mm tracks, but all widths install on the same undercarriage without modification. Or just call us at 800-966-6640 and tell us your machine — we'll match you in 30 seconds.
Bar Tread — Is It Right for Your Work?
| Pattern | Best Used For |
|---|---|
| Bar ✔ | Flat terrain · large ground contact · stability on firm surfaces |
| Block | General purpose · hardpack · dirt · long pavement runs |
| C-Lug | Mixed terrain · grading · site work · on/off road · concrete & dirt |
| Q-Tread | Multi-directional traction · good all-around performance |
| Split Bar | Bidirectional traction · shock absorption · smooth ride on varied ground |
| Turf | Lawns · landscaping · minimal ground disturbance |
| Z-Lug | Steep grades · snow · ice · maximum traction applications |
The Bar (Multi-Bar) pattern maximizes ground contact area, giving a stable, even footprint on flat terrain. The continuous bar design distributes weight across a larger surface than lug patterns, which improves stability during lifting and loading on firm, level ground. A good fit for warehouse yards, paved lots, and flat jobsites. See all available patterns at the bottom of this page.
Know Your Machine: Bobcat T870 Undercarriage Facts
The T870 is Bobcat's largest and most powerful compact track loader — 100 hp with an industry-leading rated operating capacity. All tracks use 450mm width at 4.7 psi ground pressure, available in two link counts: 58 links (standard) and 60 links (extended). The link count must match your machine's undercarriage sprocket configuration — check your operator's manual or count the current links before ordering. Here's what that means for your track purchase:
What's Inside the Track
| Component | Specification | Why It Matters |
|---|---|---|
| Iron Cores | Drop-forged steel embeds · pitch-spaced | Maintain track shape · resist deformation under load · engage sprocket cleanly |
| Steel Cords | Acid-washed · continuous cord layer | Carry tensile load · prevent stretching · hold pitch dimension over time |
| Rubber Compound | Wear-resistant · premium bonding agent | Protects cords from moisture · bonds all layers · absorbs impact on hard surfaces |
| Bar Tread | Continuous bar design for maximum contact area | Stable on flat surfaces. Less aggressive for off-road conditions. |
| Lug Height | ~1" nominal new depth | Replace when worn below ⅓ remaining — traction loss accelerates past that point |
Is It Time to Replace Your T870's Tracks?
| What You're Seeing | What It Means | Action |
|---|---|---|
| Exposed steel cords | Carcass worn through — moisture will corrode cords | Replace immediately |
| Flat or missing lugs | Tread depth below ⅓ of original 1" — traction loss | Plan replacement soon |
| Track won't hold tension | Carcass has stretched beyond adjuster range | Replace track · inspect adjuster |
| Cracks around guide bars | Aging rubber · UV damage · abrasive turning | Monitor closely, plan replacement |
| Track jumping off | Tension too loose OR guide bar/idler damage | Check tension first · inspect guide bars |
At 12,678 lbs operating weight the T870 accelerates track wear faster than lighter machines. On abrasive surfaces (concrete, asphalt), expect 1,200–1,500 hours from quality replacement tracks. Soft-ground or dirt-only work can extend this considerably.
Track Dimensions
| Size | Width | Pitch | Links | SKU |
|---|---|---|---|---|
| 450mm Width (450×86×58) | 450mm (17.7") | 86mm | 58 | B450x86x58M-BTT870 |
| 450mm Width (450×86×60) | 450mm (17.7") | 86mm | 58 | B450x86x60M-BTT870 |
All Tread Patterns Available for the T870
All patterns fit all available widths. Sold individually. Free shipping.
*Product names are used to describe the correct application and do not indicate affiliation or endorsement by the respective equipment manufacturer. Bobcat® is a registered trademark of Doosan Bobcat Inc.. ⚠ Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
*The product name is intended to describe the correct application and does not indicate affiliation or endorsement of the respective machine maker.
