
SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: 26" fat wheels · geometry for 2 published sizes.
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At a glance
| Frame Construction | Alloy Step thru |
|---|---|
| Frame Material | Aluminum |
| Fork | Suspension fork, 80mm travel, coil spring |
| Shifters | Shimano M315, 8 speed |
|---|---|
| Rear Derailleur | Shimano Acera M3020-8, 40T max cog |
| Crankset | Forged Alloy, 165mm length |
| Cassette | Cassette,11-34, 8 speed |
| Chain | KMC Z8.3 RB, rust resistant |
| Pedals | Nylon platform |
| Headset | 1-1/8'' threadless, sealed cartridge bearings |
|---|---|
| Handlebar | Electra Vale Go |
| Saddle | Bontrager Boulevard |
| Seatpost | Alloy, suspension, 31.6mm, 300mm length |
| Wheels | (F) Trek Borrego, 135mm OLD, bolt on axle, 36H, 26'' / (R) Trek Borrego, hub drive motor, bolt on axle, 36H, 26'' |
|---|---|
| Front Tire | Bontrager Borrego, wire bead, 60 tpi, 26X4.00 |
| Rear Tire | Bontrager Borrego, wire bead, 60 tpi, 26X4.00 |
| Wheel Size | 26" fat |
Frame measurements by size.
Reference frame view
Select an available measurement to locate it on the frame.
| Measurement | S-M | M-L |
|---|---|---|
| Seat tube | 305 mm | 383 mm |
| Effective top tube | 602 mm | 643 mm |
| Head tube | 150 mm | 170 mm |
| Head-tube angle | 69° | 69° |
| Seat-tube angle | 72° | 72° |
| Chainstay / rear center | 530 mm | 530 mm |
| Wheelbase | 1142 mm | 1184 mm |
| Bottom-bracket drop | 75 mm | 75 mm |
| Bottom-bracket height | 302 mm | 302 mm |
| Reach | 335 mm | 370 mm |
| Stack | 692 mm | 710 mm |
| Standover height | 594 mm | 594 mm |
| Fork offset / rake | 43 mm | 43 mm |
| Trail | 99 mm | 99 mm |
| Wheel size | 26" fat | 26" fat |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Parts & serviceability

8 Speed
Replacement option · verify fit

26x4
Replacement option · verify fit

31.6mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Archived: 2027 Trek Borrego+ · Electric-assist · Published sizes: S-M, M-L
Archived: Frame: Alloy Step thru · Fork: Suspension fork, 80mm travel, coil spring
Archived: Fork: Suspension fork, 80mm travel, coil spring
Archived: Shifters: Shimano M315, 8 speed · Rear derailleur: Shimano Acera M3020-8, 40T max cog · Crankset: Forged Alloy, 165mm length · Cassette: Cassette,11-34, 8 speed · Chain: KMC Z8.3 RB, rust resistant
Archived: Wheel size: 26" fat · Wheels: (F) Trek Borrego, 135mm OLD, bolt on axle, 36H, 26'' / (R) Trek Borrego, hub drive motor, bolt on axle, 36H, 26'' · Front tire: Bontrager Borrego, wire bead, 60 tpi, 26X4.00 · Rear tire: Bontrager Borrego, wire bead, 60 tpi, 26X4.00
Archived: Headset: 1-1/8'' threadless, sealed cartridge bearings · Handlebar: Electra Vale Go · Seatpost: Alloy, suspension, 31.6mm, 300mm length · Saddle: Bontrager Boulevard · Pedals: Nylon platform
Archived: Trek Borrego+ · electric-assist identification
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.