Mason Resolution 2020 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 48). Category: road-endurance.

Size	Stack	Reach	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop
48	534 mm	366 mm	71.0°	74.5°	425 mm	1002 mm	74 mm
51	552 mm	372 mm	71.5°	74.0°	425 mm	1010 mm	74 mm
54	570 mm	378 mm	72.0°	73.5°	425 mm	1018 mm	72 mm
56	588 mm	384 mm	72.0°	73.0°	425 mm	1028 mm	72 mm
58	606 mm	390 mm	72.5°	73.0°	425 mm	1040 mm	70 mm
61	624 mm	396 mm	72.5°	72.5°	425 mm	1052 mm	70 mm

What it's like to ride

Endurance road geometry: extra stack, a longer wheelbase, and calmer steering than the race bike in the same brand. It still pedals like a road bike. Size 56 sits around 588 mm stack and 384 mm reach, 72° head angle, 425 mm chainstays.

Who it's for

Sportive and all-day road riders who found the brand's race bike too low.

Manufacturer trims

Resolution 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 48165mm 51170mm 54172.5mm 56172.5mm 58175mm 61175mm
Cassette	Shimano	CS-R7100 105	11-34, 12-speed
Chain	Shimano	CN-M7100 SLX	12-speed
Power meter	—	None	—
Brakes	Shimano	BR-R7170 105

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.

Mason Resolution 2020 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 48). Category: road-endurance.

Size	Stack	Reach	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop
48	534 mm	366 mm	71.0°	74.5°	425 mm	1002 mm	74 mm
51	552 mm	372 mm	71.5°	74.0°	425 mm	1010 mm	74 mm
54	570 mm	378 mm	72.0°	73.5°	425 mm	1018 mm	72 mm
56	588 mm	384 mm	72.0°	73.0°	425 mm	1028 mm	72 mm
58	606 mm	390 mm	72.5°	73.0°	425 mm	1040 mm	70 mm
61	624 mm	396 mm	72.5°	72.5°	425 mm	1052 mm	70 mm

What it's like to ride

Who it's for

Sportive and all-day road riders who found the brand's race bike too low.

Manufacturer trims

Resolution 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 48165mm 51170mm 54172.5mm 56172.5mm 58175mm 61175mm
Cassette	Shimano	CS-R7100 105	11-34, 12-speed
Chain	Shimano	CN-M7100 SLX	12-speed
Power meter	—	None	—
Brakes	Shimano	BR-R7170 105

Size	Stem	Bar	Crank
48	80 mm	380 mm	165 mm
51	90 mm	400 mm	170 mm
54	100 mm	420 mm	173 mm
56	100 mm	420 mm	173 mm
58	110 mm	440 mm	175 mm
61	110 mm	440 mm	175 mm

Mason Resolution 2020 geometry

What it's like to ride

Who it's for

Manufacturer trims

Resolution Shimano 105 Di2

Similar bikes

Size guidance

Mason Resolution 2020 geometry

What it's like to ride

Who it's for

Manufacturer trims

Resolution Shimano 105 Di2

Similar bikes

Size guidance

Resolution SRAM Rival AXS

Resolution Shimano Ultegra Di2

Resolution SRAM Force AXS

Resolution Shimano Dura-Ace Di2

Resolution 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 48165mm 51170mm 54172.5mm 56172.5mm 58175mm 61175mm
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	road wheelset	700c
Tires	700x25mm	road	—

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 48165mm 51170mm 54172.5mm 56172.5mm 58175mm 61175mm
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	40–50	mm carbon wheelset	700c
Tires	700x25mm	road	—

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 48165mm 51170mm 54172.5mm 56172.5mm 58175mm 61175mm
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	race wheelset	700c
Tires	700x25mm	road	—