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2020

Checkpoint AL 4

Model 591895

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Frame	200 Series Alpha Aluminum, tapered head tube, Control Freak internal routing, rack & fender mounts, flat mount disc, 142x12mm thru axle
Fork	Checkpoint carbon, tapered alloy steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

Frame

200 Series Alpha Aluminum, tapered head tube, Control Freak internal routing, rack & fender mounts, flat mount disc, 142x12mm thru axle

Fork

Checkpoint carbon, tapered alloy steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

Weight	56cm - 10.59 kg / 23.34 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Weight

56cm - 10.59 kg / 23.34 lbs

Weight limit

This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Shifter	Shimano Tiagra R4720, 10 speed
Front derailleur	Shimano Tiagra 4700, 31.8mm clamp
Rear derailleur	Shimano Tiagra 4700, long cage, 34T max cog
*Crank	Size: 44 Shimano Tiagra 4700, 50/34, 165mm length
Size: 49, 52 Shimano Tiagra 4700, 50/34, 170mm length
Size: 54, 56 Shimano Tiagra 4700, 50/34, 172.5mm length
Size: 58, 61 Shimano Tiagra 4700, 50/34, 175mm length
Bottom bracket	Shimano RS500, 68mm, threaded external
Cassette	Shimano HG500, 11-32, 10 speed
Chain	Shimano Tiagra HG54, 10 speed

Shifter

Shimano Tiagra R4720, 10 speed

Front derailleur

Shimano Tiagra 4700, 31.8mm clamp

Rear derailleur

Shimano Tiagra 4700, long cage, 34T max cog

*Crank

Size: 44
Shimano Tiagra 4700, 50/34, 165mm length

Size: 49, 52
Shimano Tiagra 4700, 50/34, 170mm length

Size: 54, 56
Shimano Tiagra 4700, 50/34, 172.5mm length

Size: 58, 61
Shimano Tiagra 4700, 50/34, 175mm length

Bottom bracket

Shimano RS500, 68mm, threaded external

Cassette

Shimano HG500, 11-32, 10 speed

Chain

Shimano Tiagra HG54, 10 speed

Hub front	Formula RX-512 alloy, 6-bolt, 100x12mm thru axle
Skewer front	Bontrager Switch thru axle, removable lever
Hub rear	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle
Skewer rear	Bontrager Switch thru axle, removable lever
Rim	Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21mm width, Presta valve
Spokes	14g stainless steel, black
Tire	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32mm
Max tire size	38c Bontrager tires (with at least 4mm of clearance to frame)

Hub front

Formula RX-512 alloy, 6-bolt, 100x12mm thru axle

Skewer front

Bontrager Switch thru axle, removable lever

Hub rear

Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle

Skewer rear

Bontrager Switch thru axle, removable lever

Rim

Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21mm width, Presta valve

Spokes

14g stainless steel, black

Tire

Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32mm

Max tire size

38c Bontrager tires (with at least 4mm of clearance to frame)

Saddle	Bontrager Arvada Comp, steel rails, 138mm width
*Seatpost	Size: 44, 49 Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length
Size: 52, 54, 56, 58, 61 Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length
*Handlebar	Size: 44 Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 38cm width
Size: 49, 52 Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width
Size: 54, 56 Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width
Size: 58, 61 Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width
Handlebar tape	Bontrager Supertack Perf tape
*Stem	Size: 44 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: 49 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size: 52, 54 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size: 56, 58 Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length
Size: 61 Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length
Headset	FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
Brake	Shimano Tiagra hydraulic disc, flat mount
Brake rotor	Shimano RT86, 6-bolt, 160mm

Saddle

Bontrager Arvada Comp, steel rails, 138mm width

*Seatpost

Size: 44, 49
Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length

Size: 52, 54, 56, 58, 61
Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length

*Handlebar

Size: 44
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 38cm width

Size: 49, 52
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 40cm width

Size: 54, 56
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width

Size: 58, 61
Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width

Handlebar tape

Bontrager Supertack Perf tape

*Stem

Size: 44
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length

Size: 49
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length

Size: 52, 54
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length

Size: 56, 58
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length

Size: 61
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length

Headset

FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom

Brake

Shimano Tiagra hydraulic disc, flat mount

Brake rotor

Shimano RT86, 6-bolt, 160mm

size-table
Size	Rider Height	Inseam
44	150 - 153 cm 4'11" - 5'0"	71 - 73 cm 28" - 29"
49	156 - 163 cm 5'1" - 5'4"	74 - 77 cm 29" - 30"
52	163 - 168 cm 5'4" - 5'6"	76 - 79 cm 30" - 31"
54	168 - 174 cm 5'6" - 5'9"	78 - 82 cm 31" - 32"
56	174 - 180 cm 5'9" - 5'11"	81 - 85 cm 32" - 33"
58	180 - 185 cm 5'11" - 6'1"	84 - 87 cm 33" - 34"
61	185 - 191 cm 6'1" - 6'3"	86 - 90 cm 34" - 35"

Size

Rider Height

Inseam

150 - 153 cm

4'11" - 5'0"

71 - 73 cm

28" - 29"

156 - 163 cm

5'1" - 5'4"

74 - 77 cm

29" - 30"

163 - 168 cm

5'4" - 5'6"

76 - 79 cm

30" - 31"

168 - 174 cm

5'6" - 5'9"

78 - 82 cm

31" - 32"

174 - 180 cm

5'9" - 5'11"

81 - 85 cm

32" - 33"

180 - 185 cm

5'11" - 6'1"

84 - 87 cm

33" - 34"

185 - 191 cm

6'1" - 6'3"

86 - 90 cm

34" - 35"

Sizing table
Frame size number	Wheel size	A — Seat tube	B — Seat tube angle	C — Head tube length	D — Head angle	E — Effective top tube	F — Bottom bracket height	G — Bottom bracket drop	H — Chainstay length	I — Offset	J — Trail	K — Wheelbase	L — Standover	M — Frame reach	N — Frame stack
44 cm	700c	39.0	75.5°	9.0	70.6°	50.5	27.5	8.0	43.0	5.0	7.2	100.2	68.5	36.8	53.1
49 cm	700c	44.0	75.0°	10.0	71.4°	51.8	27.7	7.8	43.0	5.0	6.6	100.5	72.3	37.3	54.1
52 cm	700c	47.5	74.0°	12.0	71.7°	53.7	27.7	7.8	43.0	5.0	6.5	101.1	75.5	37.6	56.1
54 cm	700c	50.0	73.5°	13.5	71.8°	54.8	27.9	7.6	43.0	5.0	6.4	101.8	77.5	37.8	57.4
56 cm	700c	52.5	73.0°	15.0	72.2°	56.0	27.9	7.6	43.0	5.0	6.1	102.1	79.4	38.0	59.0
58 cm	700c	54.8	73.0°	17.0	72.3°	56.8	28.1	7.4	43.0	5.0	6.1	102.8	81.6	38.2	60.7
61 cm	700c	56.7	73.0°	20.0	72.6°	58.1	28.1	7.4	43.0	5.0	5.9	103.9	83.7	38.6	63.7

Sizing table

Frame size number

Wheel size

A — Seat tube

B — Seat tube angle

C — Head tube length

D — Head angle

E — Effective top tube

F — Bottom bracket height

G — Bottom bracket drop

H — Chainstay length

I — Offset

J — Trail

K — Wheelbase

L — Standover

M — Frame reach

N — Frame stack

44 cm

700c

39.0

75.5°

9.0

70.6°

50.5

27.5

8.0

43.0

5.0

7.2

100.2

68.5

36.8

53.1

49 cm

700c

44.0

75.0°

10.0

71.4°

51.8

27.7

7.8

43.0

5.0

6.6

100.5

72.3

37.3

54.1

52 cm

700c

47.5

74.0°

12.0

71.7°

53.7

27.7

7.8

43.0

5.0

6.5

101.1

75.5

37.6

56.1

54 cm

700c

50.0

73.5°

13.5

71.8°

54.8

27.9

7.6

43.0

5.0

6.4

101.8

77.5

37.8

57.4

56 cm

700c

52.5

73.0°

15.0

72.2°

56.0

27.9

7.6

43.0

5.0

6.1

102.1

79.4

38.0

59.0

58 cm

700c

54.8

73.0°

17.0

72.3°

56.8

28.1

7.4

43.0

5.0

6.1

102.8

81.6

38.2

60.7

61 cm

700c

56.7

73.0°

20.0

72.6°

58.1

28.1

7.4

43.0

5.0

5.9

103.9

83.7

38.6

63.7

Checkpoint AL 4

Checkpoint AL 4

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