GT Grade 2017 geometry

No OEM studio shot for this year yet.

Size chart for fitting. If this bike already feels right, find others with a similar riding position (size L). Category: gravel.

Size	Stack	Reach	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop
L	610 mm	398 mm	71.5°	73.0°	430 mm	1064 mm	72 mm
M	592 mm	390 mm	71.5°	73.5°	430 mm	1052 mm	72 mm
S	574 mm	382 mm	71.0°	73.5°	430 mm	1040 mm	74 mm
XL	628 mm	406 mm	72.0°	72.5°	430 mm	1076 mm	70 mm
XS	556 mm	374 mm	70.5°	74.0°	430 mm	1030 mm	74 mm

What it's like to ride

Drop-bar mixed-surface geometry: more trail and tire room than the road race bike, still not a mountain bike. Handling depends on whether this is the brand's race gravel or adventure gravel. Size M sits around 592 mm stack and 390 mm reach, 71.5° head angle, 430 mm chainstays.

Who it's for

Gravel riders. CX racers should check the brand's cyclocross chart; touring riders should look at mounts and stability, not just stack.

Manufacturer trims

Grade Shimano 105 Di2

MSRP not listed

Component	Brand	Model	Size
Shifters	Shimano	ST-R7120 105 HRD	2×12
Front derailleur	Shimano	FD-R7100 105	braze-on
Rear derailleur	Shimano	RD-R7100 105	12-speed
Crankset	Shimano	FC-R7100 105	50/34 XS165mm S170mm M172.5mm L175mm XL175mm
Cassette	Shimano	CS-R7100 105	11-34, 12-speed
Chain	Shimano	CN-M7100 SLX	12-speed
Power meter	—	None	—
Brakes	Shimano

Similar bikes

Size guidance

Stack and reach describe the frame's cockpit envelope better than traditional seat-tube sizing. If you know your preferred stack/reach from a bike that already fits, search within a few millimeters first, then check head angle and chainstay for handling feel. See the glossary for stack, reach, and HTA.

GT Grade 2017 geometry

No OEM studio shot for this year yet.

Size chart for fitting. If this bike already feels right, find others with a similar riding position (size L). Category: gravel.

Size	Stack	Reach	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop
L	610 mm	398 mm	71.5°	73.0°	430 mm	1064 mm	72 mm
M	592 mm	390 mm	71.5°	73.5°	430 mm	1052 mm	72 mm
S	574 mm	382 mm	71.0°	73.5°	430 mm	1040 mm	74 mm
XL	628 mm	406 mm	72.0°	72.5°	430 mm	1076 mm	70 mm
XS	556 mm	374 mm	70.5°	74.0°	430 mm	1030 mm	74 mm

What it's like to ride

Who it's for

Gravel riders. CX racers should check the brand's cyclocross chart; touring riders should look at mounts and stability, not just stack.

Manufacturer trims

Grade Shimano 105 Di2

MSRP not listed

Component	Brand	Model	Size
Shifters	Shimano	ST-R7120 105 HRD	2×12
Front derailleur	Shimano	FD-R7100 105	braze-on
Rear derailleur	Shimano	RD-R7100 105	12-speed
Crankset	Shimano	FC-R7100 105	50/34 XS165mm S170mm M172.5mm L175mm XL175mm
Cassette	Shimano	CS-R7100 105	11-34, 12-speed
Chain	Shimano	CN-M7100 SLX	12-speed
Power meter	—	None	—
Brakes	Shimano

Size	Stem	Bar	Crank
L	110 mm	440 mm	175 mm
M	100 mm	420 mm	173 mm
S	90 mm	400 mm	170 mm
XL	110 mm	440 mm	175 mm
XS	80 mm	380 mm	165 mm

GT Grade 2017 geometry

What it's like to ride

Who it's for

Manufacturer trims

Grade Shimano 105 Di2

Similar bikes

Size guidance

GT Grade 2017 geometry

What it's like to ride

Who it's for

Manufacturer trims

Grade Shimano 105 Di2

Similar bikes

Size guidance

Grade SRAM Rival AXS

Grade Shimano Ultegra Di2

Grade SRAM Force AXS

Grade Shimano Dura-Ace Di2

Grade SRAM RED AXS

Cockpit by size

Reviews

Component	Brand	Model	Size
Shifters	Shimano	ST-R7170 105 Di2 HRD	2×12
Front derailleur	Shimano	FD-R7150 105 Di2	braze-on
Rear derailleur	Shimano	RD-R7150 105 Di2	12-speed
Crankset	Shimano	FC-R7100 105	52/36 XS165mm S170mm M172.5mm L175mm XL175mm
Cassette	Shimano	CS-R7100 105	11-34, 12-speed
Chain	Shimano	CN-M7100 SLX	12-speed
Power meter	—	None	—
Brakes	Shimano	BR-R7170 105	hydraulic disc
Rotors	Shimano	SM-RT70	160mm centerlock
Bottom bracket	Shimano	BSA threaded	—
Wheels	Alloy	gravel wheelset	700c
Tires	700x38mm	gravel	—

Component	Brand	Model	Size
Shifters	Shimano	ST-R8170 Ultegra Di2 HRD	2×12
Front derailleur	Shimano	FD-R8150 Ultegra Di2	braze-on
Rear derailleur	Shimano	RD-R8150 Ultegra Di2	12-speed
Crankset	Shimano	FC-R8100 Ultegra	52/36 XS165mm S170mm M172.5mm L175mm XL175mm
Cassette	Shimano	CS-R8100 Ultegra	11-30, 12-speed
Chain	Shimano	CN-M8100 Ultegra	12-speed
Power meter	—	None	—
Brakes	Shimano	BR-R8170 Ultegra	hydraulic disc
Rotors	Shimano	SM-RT800	160mm / 140mm centerlock
Wheels	Alloy	gravel wheelset	700c
Tires	700x38mm	gravel	—

Component	Brand	Model	Size
Shifters	Shimano	ST-R9270 Dura-Ace Di2 HRD	2×12
Front derailleur	Shimano	FD-R9250 Dura-Ace Di2	braze-on
Rear derailleur	Shimano	RD-R9250 Dura-Ace Di2	12-speed
Crankset	Shimano	FC-R9200 Dura-Ace HollowTech II	52/36 XS165mm S170mm M172.5mm L175mm XL175mm
Cassette	Shimano	CS-R9200 Dura-Ace	11-30, 12-speed
Chain	Shimano	CN-M9100 Dura-Ace	12-speed
Power meter	—	None	—
Brakes	Shimano	BR-R9270 Dura-Ace	hydraulic disc
Rotors	Shimano	RT-MT900	160mm front / 140mm rear
Wheels	Carbon	40–45 mm gravel wheelset	700c
Tires	700x38mm	gravel	—