Fat Bike Tire Comparison:
Surly Larry 27 TPI 2016 vs
Vittoria Bomboloni TNT 2017
Contents and Test Summary
- Manufacturer Specifications
- Size and Weight Measurements
- Rolling Resistance Test Results
- Puncture Resistance Test Results
- Conclusion
- Surly Larry 27 TPI *
- Vittoria Bomboloni TNT *
Performance compared to all other fat bike tires
(100% is fastest - lightest - highest - strongest)
(100% is fastest - lightest - highest - strongest)
Pro Members get 9-point radar charts
Manufacturer Specifications
| Manufacturer Specs | ||
|---|---|---|
| Brand | Surly | Vittoria |
| Model | Larry 27 TPI | Bomboloni TNT |
| Year | 2016 | 2017 |
| Supplied By | Bought in store | Bought in store |
| Full Review | Full Review | Full Review |
| New or Used | New | New |
| Mileage | 0 km | 0 km |
| Price Range | High | High |
| Buy At | Ad Amazon.com | |
| Manufacturer Part Number | 1Z1.3BA.32.96.111TG | |
| TPI | 27 | 120 |
| Compound | Dual Compound | |
| Bead | Wire | Folding |
| ETRTO | 96-559 | |
| Size Inch | 26" | 26" |
| Width Inch | 3.80 | 4.00 |
| Specified Weight | 1567 grams | 1525 grams |
| Min Air Pressure | psi | psi |
| Max Air Pressure | 30 psi | 20 psi |
| Made In | Members Only | Members Only |
| Available Sizes | 26x3.80 | 26x4.00 |
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Size and Weight Measurements
| Size and Weight Measurements | ||
|---|---|---|
| Model | Larry 27 TPI | Bomboloni TNT |
| Specified Weight | 1567 grams | 1525 grams |
| Measured Weight | 1660 grams | 1506 grams |
| Measured Width Casing | 95 mm (un-round) | 95 mm (un-round) |
| Measured Width Tread | 92 mm | 99 mm |
| Measured Height | 81 mm (un-round) | 81 mm (un-round) |
| Measured Knob Height Center | 4.5 mm | 3.1 mm |
| Measured Knob Height Edge | 4.5 mm | 6.5 mm |
| Measured Total Thickness Sidewall | Members Only | Members Only |
| Measured Carcass Thickness Center | 2.90 mm | 2.10 mm |
| All size measurements are taken at an air pressure of 16 psi / 1.1 bars on a 65 mm inner width rim. | ||
Rolling Resistance Test Results
| Rolling Resistance Test Results | ||
|---|---|---|
| Model | Larry 27 TPI | Bomboloni TNT |
| Spin Up Video | YouTube | YouTube |
| Inner Tube | None (60 ml sealant) | None (60 ml sealant) |
| Rolling Resistance 20 PSI / 1.4 Bar |
Members Only | Members Only |
| Rolling Resistance 16 PSI / 1.1 Bar |
Members Only | Members Only |
| Rolling Resistance 12 PSI / 0.8 Bar |
38.0 Watts CRR: 0.01139 | 36.6 Watts CRR: 0.01097 |
| Rolling Resistance 8 PSI / 0.6 Bar |
45.5 Watts> CRR: 0.01364 | 46.4 Watts> CRR: 0.01391 |
| All numbers are for a single tire at a speed of 29 km/h / 18 mph and a load of 42.5 kg / 94 lbs. Use the formula: RR (Watts) = CRR * speed (m/s) * load (N) to calculate rolling resistance at a given speed and load. |
||
Puncture Resistance Test Results
| Puncture Resistance Test Results (higher is better) | ||
|---|---|---|
| Model | Larry 27 TPI | Bomboloni TNT |
| Total Puncture Score Tread | 28 Points | 33 Points |
| Total Puncture Score Sidewall | Members Only | Members Only |
| Tread Puncture Force Sharp Needle | Members Only | Members Only |
| Tread Puncture Force Blunt Needle | Members Only | Members Only |
| Tread Total Tire Thickness | 2.9 mm | 2.1 mm |
| Sidewall Puncture Force Sharp Needle | Members Only | Members Only |
| Sidewall Puncture Force Blunt Needle | Members Only | Members Only |
| Sidewall Total Tire Thickness | Members Only | Members Only |
Conclusion
| Conclusion | ||
|---|---|---|
| Model | Larry 27 TPI | Bomboloni TNT |
| Full Review | Full Review | Full Review |
| Verdict | Not Recommended | Not Recommended |
| Rating | 2 / 5 | 2 / 5 |
| Buy At | Ad Amazon.com | |
- Surly Larry 27 TPI *
- Vittoria Bomboloni TNT *
(100% is fastest - lightest - highest - strongest)
Pro Members get 9-point radar charts