Beargrease is our carbon hotrod fat bike, designed to convert strength and determination into speed. The super light chassis and the sure-footed rollover of 27.5 x 4? wheels and tires reinforce Beargrease's objective; to keep you in the express lane wherever you're headed. Point your front wheel towards the start line of a race on groomed snow or singletrack, challenge yourself on an overnight bikepacking trip, or just get your trail riding on.
| Design Wheel/Tire Size | 27.5 x 3.8" on an 82mm rim |
|---|---|
| Alternate Wheel/ Tire Size | 26 x 3.8-4.6" on up to a 100mm rim 27.5 x 3.0-4.0 on up to a 82mm rim 29 x 2.25-3.0" |
| Susp Fork Length | 511mm (100mm) |
| Rigid Fork Length | 483-486mm |
| Fork Offset | 50-51mm |
| Headset-Upper | IS41 |
| Headset-Lower | IS52 |
| Seatpost | ø30.9mm |
| Seat Collar | ø35.4mm |
| Dropper Compatible | Yes, internal (stealth) |
| Front Derailleur Type | Not compatible |
| Bottom Bracket | 100mm BSA threaded |
| Crankset (Max Ring) | Fat bike ~75 chainline, 1x only (32t) |
| Rear Brake (Rotor) | 74mm post (160-180mm) |
| Rear Spacing | 197 x 12mm thru-axle |
| Rear Axle | ø12 x 220L, TP= 1.5, TL = 20 |
| Derailleur Hanger | FS2322 |
| Bottle Mount Pairs | XS = 1, SM-XL = 2 |
| Under Downtube Mount Pairs | XS-XL = 1 |
| Top Toptube Mount Pairs | XS-XL = 1 |
| Rear Rack Mounts, Lower | Yes, use Salsa Alternator Rack 170/177 |
| Rear Rack Mounts, Upper | No, use Rack-Lock |
| Rear Fender Mounts | No |
| Optional Accessories | Split Pivot Top Cap Tool for Hanger |
| Fork Design Wheel/Tire Size | 26 x 3.8-4.8" |
| Fork Alternate Wheel/Tire Sizes | 26 x 3.8-4.6, 27.5 x 3.0-4.0", 29 x 2.25-3.0" |
| Axle to Crown | 483mm |
| Offset | 51mm |
| Steerer Tube Size | 28.6mm |
| Steerer Style | Tapered |
| Crown Seat Diameter | 40mm |
| Front Brake (Rotor) | 74mm post (160-203mm) |
| Front Spacing | 150 x 15mm thru-axle |
| Front Axle Size | ø15 x 198L, TP=1.5, TL=9 |
| Front Rack Mounts | 165mm Low Rider |
| Fender Mounts | Yes, shared with rack |
| Accessory Mounts | Varies by fork spec, consult bike or frameset spec for fork spec and fork features |
