The current TrackTECH live collections place the Bobcat T250, T300, T320, T740, T750 and T770 in the 450x86x55 rubber-track family.
Current 450x86x55 Bobcat models
| Model | Current TrackTECH size | Machine collection |
|---|---|---|
| T250 | 450x86x55 | Shop T250 |
| T300 | 450x86x55 | Shop T300 |
| T320 | 450x86x55 | Shop T320 |
| T740 | 450x86x55 | Shop T740 |
| T750 | 450x86x55 | Shop T750 |
| T770 | 450x86x55 | Shop T770 |
Same track family does not mean same undercarriage
The 450x86x55 belt family can fit several Bobcat machines while their undercarriage part numbers differ by model and serial range. That is why a sprocket or idler should be ordered by machine/serial or verified component number, not by track size alone.
Common part-number overlap
Many models in this group overlap on sprocket references 7165109 / 6715821 / 7196807 / 7227421, but front idlers, rear idlers and roller configurations vary. T740, for example, currently uses a tighter subset than T750/T770 in the live catalog.
Best tread for the 450x86x55 family
C-Block is a strong hard-surface/general-duty choice; Zig-Zag or Staggered Block fits mixed work; Multi-Bar favors softer ground; X-Terrain/aggressive patterns favor traction-heavy applications. The right tread depends on where the machine spends its hours.
Before you replace a 55-link track
Inspect sprockets, idlers and rollers. A 450x86x55 track installed over a hooked sprocket or seized roller can wear badly even when the track itself is correct.
Quick Buying Answers
Which rubber track rides the smoothest? For a verified fitment that offers it, Multi-Bar is usually the first tread to compare when lower vibration and smoother travel matter most.
Which track lasts longest on pavement? On asphalt and other hard, relatively flat surfaces, Multi-Bar is a strong first choice because it spreads contact across more tread bars. For harsher abrasive work such as broken concrete, rock, or demolition debris, compare a heavier C-Block or Staggered Block pattern instead.
What is the best track for paving? Start with Multi-Bar when ride quality, steady contact, and hard-surface travel are priorities. Confirm that the exact pattern is available for your machine before ordering.
What is the most affordable track? Price depends on the exact width, pitch, link count, guide type, and tread. Once fitment is confirmed, compare the live compatible options rather than changing dimensions just to save money.
What about mud, snow, or soft ground? Zig-Zag is usually the better pattern to compare when cleanout and bite matter more than pavement manners.