BULLS Grinder 4 2021
2021 Road
Estimate price |
2,350$
Weight | 10.2 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 700c -
Groupset GRX 800 -
Suspension Rigid -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Alloy
Suspension Fork
Carbon
Drivetrain
Rear Derailleur
Shimano GRX RD-RX812
Shift Levers
Shimano GRX ST-RX810
Cassette
Shimano Deore CS-M5100-11 11-42T
Crank
Shimano GRX FC-RX810
Wheels
Front Hub
BULLS
Rear Hub
BULLS
Rims
Bulls XC-21 Evo Tubeless ready
Tires
Schwalbe G-One TLE
Brakes
Brakes
Hydraulische Scheibenbremse
Cockpit
Stem
MTB-SL, CCS
Handlebar
BULLS Gravelbar
Seat
Saddle
BULLS
Seatpost
BULLS Duroflex Carbon
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 49cm | 52cm | 55cm | 58cm | 61cm |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.51 mm | 1.56 mm | 1.6 mm | 1.63 mm | 1.67 mm |
| Bottom Bracket Height | 274 mm | 274 mm | 279 mm | 279 mm | 279 mm |
| Front Center | 601 mm | 606 mm | 617 mm | 627 mm | 641 mm |
| Trail | 78 mm | 70 mm | 67 mm | 64 mm | 65 mm |
| Stack | 567 mm | 594 mm | 619 mm | 643 mm | 669 mm |
| Reach | 375 mm | 380 mm | 386 mm | 394 mm | 400 mm |
| Top Tube Length | 541 mm | 557 mm | 574 mm | 592 mm | 609 mm |
| Seat Tube Angle | 73.5 ° | 73.25 ° | 73 ° | 72.75 ° | 72.5 ° |
| Seat Tube Length | 490 mm | 520 mm | 550 mm | 580 mm | 610 mm |
| Head Tube Angle | 70 ° | 71 ° | 71.5 ° | 72 ° | 72 ° |
| Head Tube Length | 135 mm | 160 mm | 189 mm | 213 mm | 240 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1025 mm | 1030 mm | 1042 mm | 1052 mm | 1066 mm |
| Bottom Bracket Drop | 75 mm | 75 mm | 70 mm | 70 mm | 70 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 |
About this model
Grinder 4 belongs to the Bulls Grinder model. BULLS released 21 bikes variations of this model so far. Check out the entire range from 2021 of this model, by clicking this link.
Model range prices
BULLS Grinder 2 2021 is the cheapest bike model and costs 1114$. BULLS Grinder 4 2021 is the most expensive one and costs 2176$.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Gravel bikes
According to our math, the average price for a trustworthy Gravel bike is 2462$. However, this doesn’t mean that if you spend less money on a Gravel bike, you couldn’t get a decent one. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, this bike was made available in 2021 for 2176$. In conclusion, this bike price is 13.14% lower than the price of the average Gravel bike.
Gravel bikes average weight
Gravel bikes have an average weight of 8.13 kg (17.92 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
Grinder 4 weighs 10.2 kg (22.49 lbs) and is much heavier than the average. In other words, this model is 25.46% heavier than the average Gravel bike.
Grinder 4 components
Fork material
Grinder 4 has a carbon fork, so, its weight is considerably lighter than one made out of steel. However, they cost a bit more than steel forks.
Wheels
The Grinder 4 2021 bike is equipped with 700c aluminum wheels when leaving the factory. There is no doubt, that 700c wheels are very popular on all road bike models. However, these wheels don’t perform so well when passing over obstacles.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, you can ride your bike with confidence.